A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California:
Gespeichert in:
| Körperschaft: | |
|---|---|
| Format: | Tagungsbericht Buch |
| Sprache: | English |
| Veröffentlicht: |
[Washington, DC]
Optical Society of America
1984
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| Schriftenreihe: | Technical digest
1984,9 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | Getr. Zählung [ca. 600 S.] graph. Darst. 29 cm |
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| 111 | 2 | |a International Conference on Ultrafast Phenomena |n 4 |d 1984 |c Monterey, Calif. |j Verfasser |0 (DE-588)5231040-1 |4 aut | |
| 245 | 1 | 0 | |a A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |c sponsored by Optical Society of America and Air Force Office of Scientific Research |
| 246 | 1 | 3 | |a Ultrafast phenomena |
| 246 | 1 | 3 | |a Topical Meeting on ultrafast phenomena |
| 264 | 1 | |a [Washington, DC] |b Optical Society of America |c 1984 | |
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| _version_ | 1804137993926082560 |
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| adam_text | TOPICAL MEETING ON ULTRAFAST PHENOMENA A DIGEST OF TECHNICAL PAPERS
PRESENTED AT THE TOPICAL MEETING ON ULTRAFAST PHENOMENA, JUNE
12-15,1984, MONTEREY, CALIFORNIA. KN SPONSORED BY OPTICAL SOCIETY OF
AMERICA AND AH* FORCE OFFICE OF SCIENTIFIC RESEARCH THE PRINCIPLE SOURCE
OF FUNDING FOR THIS CONFERENCE IS FROM THE AIR FORCE OFFICE OF
SCIENTIFIC RESEARCH ACKNOWLEDGEMENT IN ADDITION TO THE CONTRACT SUPPORT
FOR AFOSR, THE ORGANIZERS OF THIS CONFERENCE WISH TO ACKNOWLEDGE
CONTRIBUTIONS FROM COHERENT, E. I. DU PONT DE NEMOURS & COMPANY,
HAMAMATSU CORPORATION, KLINGER SCIENTIFIC CORPORATION, IBM CORPORATION,
NEWPORT CORPORATION, QUANTEL INTERNATIONAL, QUANTRONIX CORPORATION,
SPECTRA-PHYSICS, AND STANDARD OIL COMPANY (OHIO). COPYRIGHT 1984,
OPTICAL SOCIETY OF AMERICA MONDAY, JUNE 11,1984 FERRANTE ROOM/JEFFERS
PLAZA 6:00 PM-9:00 PM REGISTRATION/REFRESHMENTS TUESDAY, JUNE 12,1984
STEINBECK FORUM 8:15 AM OPENING REMARKS DAVID H. AUSTON, AT&T BELL
LABORATORIES, CONFERENCE COCHAIRMAN KENNETH B. EISENTHAL, COLUMBIA
UNIVERSITY, CONFERENCE COCHAIRMAN GENERATION AND MEASUREMENT I A. E.
SIEGMAN, STANFORD UNIVERSITY, PRESIDER 8:30 AM INVITED PAPER TUA1
OPTICAL PULSE COMPRESSION, D. GRISCHKOWSKY, IBM THOMAS J. WATSON
RESEARCH CENTER. THE UNIQUE FEATURES OF AN OPTICAL-FIBER PULSE
COMPRESSOR ARE ILLUSTRATED WITH EXPERI- MENTAL EXAMPLES. THE ADVANTAGES
OF OPTICAL PULSE COMPRES- SION FOR MEASUREMENT APPLICATIONS ARE
DEMONSTRATED. 8:55 AM TUA2 SOLITON SHAPING MECHANISMS IN PASSIVELY MODE-
LOCKED LASERS AND NEGATIVE GROUP VELOCITY DISPERSION USING REFRACTION,
O. E. MARTINEZ, CEILAP, CITEFA-CONICET, ZUFRIATEGUIY VARELA, ARGENTINA,
AND J. P. GORDON AND R. L. FORK, AT&T BELL LABORATORIES. SOLITON SHAPING
MECHANISMS IN PASSIVELY MODE- LOCKED LASERS AS WELL AS A METHOD FOR
OBTAINING NEGATIVE GROUP-VELOCITY DISPERSION USING REFRACTIVE PHENOMENA
ARE DISCUSSED. 9:10 AM INVITED PAPER TUA3 THE SOLITON LASER, L. F.
MOLLENAUER AND R. H. STOLEN, AT&T BELL LABORATORIES. THE SOLITON LASER,
A NOVEL MODE-LOCKED DEVICE WHOSE PULSE WIDTH (2.0 TO 0.2 PSEC OBTAINED
TO DATE) AND PULSE SHAPE ARE DETERMINED BY A (VARIABLE) LENGTH OF
SINGLE- MODE FIBER IN ITS FEEDBACK LOOP, IS DESCRIBED. 9:35 AM INVITED
PAPER TUA4 COMPRESSION AND SHAPING OF FEMTOSECOND PULSES, A. M. WEINER,
J. G. FUJIMOTO, AND E. P. IPPEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY.
WE DESCRIBE THE GENERATION OF PULSES AS SHORT AS 16 FSEC BY
OPTICAL-FIBER COMPRESSION. AT HIGHER POWERS, PULSES HAVE BEEN SHORTENED
TO 37 FSEC BY TRANSIENT FOUR-WAVE MIXING. 10:00 AM TUA5 GENERATION OF
0.41-PICOSECOND PULSES BY THE SINGLE- STAGE COMPRESSION OF
FREQUENCY-DOUBLED ND:YAG LASER PULSES, A. M. JOHNSON, R. H. STOLEN, AND
W. M. SIMPSON, AT&T BELL LABORATORIES. THE 33-PSEC PULSES OF A
FREQUENCY-DOUBLED NDTYAG LASER HAVE BEEN COMPRESSED 80 X USING A SINGLE-
MODE FIBER AND MODIFIED GRATING-PAIR DELAY LINE. TUESDAY, JUNE
12,1984-CONTINUED 10:15 AM TUA6 EFFECTS OF CAVITY DISPERSION ON
FEMTOSECOND MODE- LOCKED DYE LASERS, S. DE SILVESTRI, P. LAPORTA, AND O.
SVELTO, ISTITUTO DE FISICA DEL POLITECNICO, ITALY. DISPERSION ARISING
FROM MIRRORS AND OTHER COMPONENTS OF A FEMTOSECOND LASER CAVITY IS SHOWN
TO INFLUENCE THE MODE-LOCKING BEHAVIOR FOR PULSE WIDTHS SHORTER THAN
ABOUT 200 FSEC. 10:30 AM-10:50 AM COFFEE BREAK COFFEE SERVED JEFFERS
PLAZA CHEMISTRY I GERALDINE A. KENNEY-WALLACE, UNIVERSITY OF TORONTO,
PRESIDER 10:50 AM INVITED PAPER TUB1 PICOSECOND DYNAMICS OF MOLECULES IN
SUPERSONIC BEAMS: RECENT ADVANCES, AHMED H. ZEWAIL, CALIFORNIA IN-
STITUTE OF TECHNOLOGY. NEW RESULTS ON THE PICOSECOND DYNAMICS OF
ROTATIONALLY AND VIBRATIONALLY COOLED MOLECULES ARE PRESENTED.
PUMP-PROBE AND FLUORESCENCE TECHNIQUES IN THE BEAM ARE USED TO MONITOR
INTRAMOLECULAR COHERENCE, ION- IZATION, AND RATES OF CHEMICAL REACTIONS.
11:15 AM TUB2 ROLE OF A AND A STATES IN THE GEMINATE RECOMBINA- TION OF
MOLECULAR IODINE, DAVID F. KELLEY, N. ALAN ABUL-HAJ, AND DU-JEON JANG,
UNIVERSITY OF CALIFORNIA, LOS ANGELES. PICO- SECOND SPECTROSCOPIC
RESULTS INDICATE THAT THE A AND/OR A STATES ARE POPULATED IN THE
RECOMBINATION OF L 2 . NO EVIDENCE FOR SLOW VIBRATIONAL RELAXATION WAS
OBSERVED. 11:30 AM TUB3 MOLECULAR DYNAMICS OF L 2 PHOTODISSOCIATION IN
CYCLO- HEXANE: EXPERIMENTAL PICOSECOND TRANSIENT ELECTRONIC AD-
SORPTION, PHILIPPE BADO,* CHARLES G. DUPUY, JOHN P. BERGSMA, AND KENT R.
WILSON, UNIVERSITY OF CALIFORNIA, SAN DIEGO. EX- PERIMENTAL AND
THEORETICAL STUDIES OF THE WAVELENGTH DEPENDENCE OF THE TRANSIENT
ELECTRONIC ABSORPTION OF L 2 IN CYCLOHEXANE FOLLOWING PHOTODISSOCIATION
AT 680 NM INDICATE THAT THE OBSERVED RESPONSE TIMES ARE LARGELY DUE TO
THE VIBRA- TIONAL DECAY OF THE ALREADY RECOMBINED L 2 MOLECULES. PRESENT
ADDRESS: UNIVERSITY OF ROCHESTER. -11:45 AM TUB4 ROLE OF THE SOLVENT IN
INTERSYSTEM CROSSING IN AROMATIC CARBENES ... A CLASS OF CHEMICAL
INTERMEDIATES, E. V. SITZMANN, J. G. LANGAN, Z. Z. HO, AND K. B.
EISENTHAL, COLUM- BIA UNIVERSITY. A NOVEL SOLVENT POLARITY EFFECT HAS
BEEN OBSERV- ED FOR THE DYNAMICS, ENERGETICS, AND REACTIONS OF AROMATIC
CARBENES. IT IS REPORTED THAT THE SINGLET-TO-TRIPLET INTERSYSTEM
CROSSING RATE DECREASES WITH INCREASING SOLVENT POLARITY. THE PHENOMENON
IS RELATED TO CORRESPONDING CHANGES IN THE SINGLET-TRIPLET ENERGY GAP.
USING THE EXAMPLE OF SINGLET DIPHENYLCARBENE REACTION WITH ALCOHOLS, IT
IS SHOWN THAT THE SOLVENT POLARITY EFFECT LEADS TO UNUSUAL KINETIC
BEHAVIOR. R T-:CHN!SCH TUESDAY, JUNE 12,1984*CONTINUED TUESDAY, JUNE
12,1984-CONTINUED 12:00 M TUB5 PICOSECOND TRANSIENT RAMAN SPECTROSCOPY:
THE EXCITED-STATE STRUCTURE OF DIPHENYLPOLYENES, T. L. GUSTAFSON, D. A.
CHERNOFF, J. F. PALMER, AND D. M. ROBERTS, THE STANDARD OIL COMPANY
(OHIO). WE REPORT THE PUMP-PROBE PICOSECOND TRANSIENT RAMAN SPECTRA OF
TRANS-STILBENE AND DIPHENYLBU- TADIENE. THE RESULTS SUGGEST THAT THE
EXCITED-STATE STRUCTURE OF DIPHENYLBUTADIENE IN FLUID SOLUTION IS
SIMILAR TO TRANS-STILBENE. 12:15 PM INVITED PAPER TUB6 PICOSECOND
DYNAMICS OF ORGANIC ION PAIRS, KEVIN PETERS, UNIVERSITY OF COLORADO.
PICOSECOND ABSORPTION SPEC- TROSCOPY IS USED TO PROBE THE DYNAMICS OF
THE CHEMISTRY OF ION PAIRS FORMED BY THE PHOTOINDUCED ELECTRON TRANSFER
FROM AMINES TO KETONES. 12:40 PM LUNCH BREAK BIOLOGY I R. A. MATHIES,
UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 2:15 PM INVITED PAPER TUC1
SIDE-CHAIN MOTIONS IN PROTEINS, D. K. NEGUS AND R. M. HOCHSTRASSER,
UNIVERSITY OF PENNSYLVANIA. WE HAVE CARRIED OUT FLUORESCENCE DECAY
MEASUREMENTS AND FLUORESCENCE ANISO- TROPY STUDIES OF TRYPTOPHAN
RESIDUES IN HEMEPROTEINS. THE DECAYS OCCUR ON THE PICOSECOND TIME SCALE
AS A RESULT OF ENERGY TRANSFER. THE ANISOTROPY HAS PROVIDED INFORMATION
ABOUT DETAILED PROPERTIES OF THE EQUILIBRIUM DISTRIBUTION OF AMINO
ACIDS. 2:40 PM INVITED PAPER TUC2 RESOLUTION OF THE FEMTOSECOND-LIFETIME
SPECIES IN- VOLVED IN THE PHOTODISSOCIATION PROCESS OF HEMEPROTEINS AND
PROTOHEME, J. L MARTIN* AND A. MIGUS, ECOLE POLYTECHNIQUE, FRANCE, C.
POYART, INSERM, FRANCE, AND Y. LECARPENTIER, A. ASTIER, AND A.
ANTONETTI, ECOLE POLYTECHNIQUE, FRANCE. FEM- TOSECOND ABSORPTION
SPECTROSCOPY OF PHOTODISSOCIATED HEMO- PROTEINS AND PROTOHEME INDICATES
THAT A TRANSIENT SPECIES WITH A 350-FSEC LIFETIME IS INVOLVED IN THE
PHOTODISSOCIATION PROCESS WHATEVER THE LIGAND IS. THE SPECTRAL
PROPERTIES OF THE DEOXY-LIKE SPECIES ARE ANALYZED. * PRESENT ADDRESS:
UNIVERSITY OF CALIFORNIA, SAN DIEGO. 3:05 PM TUC3 PICOSECOND VIBRATIONAL
DYNAMICS OF PEPTIDES AND PRO- TEINS, ERIC L. CHRONISTER, RAYMOND E.
CLINE, JR., JEFFREY H. HILL, THOMAS J. KOSIC, AND DANA D. DLOTT,
UNIVERSITY OF ILLINOIS. STRUCTURAL FLUCTUATIONS AND LIGAND BINDING IN
PROTEINS AND PEP- TIDES AT LOW TEMPERATURE ARE INVESTIGATED BY
PICOSECOND COHERENT RAMAN AND PICOSECOND INFRARED SPECTROSCOPIES. 3:20
PM TUC4 NEW INVESTIGATIONS OF THE PRIMARY PROCESSES OF BAC-
TERIORHODOPSIN AND OF HALORHODOPSIN, H. J. POLLAND, W. ZINTH, AND W.
KAISER, TECHNISCHEN UNIVERSITAT M U NCHEN, FRG. A RED- SHIFTED FIRST
INTERMEDIATE APPEARS IN HALORHODOPSIN AND IN BACTERIORHODOPSIN WITHIN 5
AND 0.5 PSEC, RESPECTIVELY. THE SUBSEQUENT INTERMEDIATE K, 10 IN
BACTERIORHODOPSIN FORMS WITHIN 5 PSEC. 3:35 PM TUC5 PRIMARY EVENTS IN
VISION PROBED BY ULTRAFAST LASER SPECTROSCOPY, A. G. DOUKAS AND R. R.
ALFANO, THE CITY COLLEGE OF NEW YORK. THIS REVIEW DEALS WITH THE EARLY
EVENTS IM- MEDIATELY FOLLOWING THE ABSORPTION OF A PHOTON IN THE RETINA,
THE ULTRAFAST OPTICAL METHODS THAT HAVE BEEN DEVELOPED TO STUDY THEM,
AND THE VARIOUS THEORETICAL MODELS THAT ATTEMPT TO DESCRIBE THEM. 3:50
PM TUC6 PICOSECOND TIME-RESOLVED POLARIZED EMISSION SPEC- TROSCOPY OF
BILIPROTEINS: INFLUENCE OF TEMPERATURE AND AG- GREGATION, S. SCHNEIDER,
P. HEFFERLE, P. GEISELHART, T. MINDL, AND F. DORR, TECHNISCHE
UNIVERSITAT, GARCHING, FRG., AND W. JOHN AND H. SCHEER, BOTANISCHES
INSTITUT DER UNIVERSITAT M U N- CHEN, FRG. ENERGY TRANSFER AND
INTRAMOLECULARRELAXATION PRO- CESSES IN BILIPROTEINS ORIGINATING FROM
DIFFERENT ALGAE ARE STUDIED TO ELUCIDATE THE INFLUENCE OF
CHROMOPHORE-PROTEIN IN- TERACTION ON THE DEACTIVATION. 4:05 PM-4:25 PM
COFFEE BREAK COFFEE SERVED JEFFERS PLAZA PHYSICS I W. KAISER, TECHNICAL
UNIVERSITY OF MUNICH, PRESIDER 4:25 PM INVITED PAPER TUD1 INTERMODULAR
DYNAMICS IN LIQUIDS ON THE SUBPICO- SECOND TIME SCALE, PAUL MADDEN,
ROYAL SIGNALS & RADAI ESTABLISHMENT, U.K. THE POLARIZABILITY ASSOCIATED
WITH MOLECU LAR COLLISIONS CAUSES SYMMETRY-FORBIDDEN SPECTRA TO APPEAR
IR LIQUIDS AND ALSO CHANGES THE SHAPE OF THE ALLOWED BANDS MOLECULAR
ENCOUNTERS HAVE BEEN STUDIED IN THE FREQUENCY DOMAIN, AND THE
IMPLICATIONS TO TIME-DOMAIN STUDIES ARE CON SIDERED. 4:50 PM INVITED
PAPER TUD2 TRANSIENT INFRARED SPECTROSCOPY ON THE PICOSECONC TIME SCALE,
H.-J. HARTMANN AND A. LAUBEREAU, UNIVERSITW BAYREUTH, FRG. COHERENT
PULSE PROPAGATION IN HIGH-PRESSURE GASES WITH DRASTIC PULSE RESHAPING
ALLOWS THE DIRECT DETER MINATION OF RELAXATION TIMES. A NOVEL ISOTOPIC
BEATING PHENOMENON IS OBSERVED. 5:15 PM TUD3 TIME-RESOLVED NONLINEAR
SPECTROSCOPY OF VIBRATIONA OVERTONES AND TWO-PHONON STATES, G. M. GALE,
M. L. GEIRNAERT AND C. FLYTZANIS, ECOLE POLYTECHNIQUE, FRANCE. THE
DYNAMICS OF VIBRATIONAL OVERTONES AND TWO-PHONON BOUND STATES IN LIQUIC
AND CRYSTALLINE CS 2 ARE SELECTIVELY STUDIED BY HIGH-SENSITIVITY
PICOSECOND NONLINEAR OPTICAL TECHNIQUES. 5:30 PM BREAK TUESDAY, JUNE
12,1984*CONTINUED STEINBECK LOBBY 6:00 PM-730 PM POSTER SESSION I
REFRESHMENTS SERVED JEFFERS PLAZA TUE1 FEMTOSECOND DEPHASING
MEASUREMENTS USING TRANSIENT-INDUCED GRATINGS, ANDREW M. WEINER AND
ERICH P. IP- PEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY. TRANSIEN T
GRATING MEASUREMENTS OF FEMTOSECOND DEPHASING TIMES ARE DISCUSS- ED. OUR
TECHNIQUE PROVIDES RESOLUTION BELOW THE PULSE WIDTH AND DISTINGUISHES
CLEARLY BETWEEN HOMOGENEOUS AND IN- HOMOGENEOUS BROADENING. TUE2 NOVEL
APPLICATIONS OF COHERENT PICOSECOND RAMAN SCATTERING, H. GRAENER AND A.
LAUBEREAU, UNIVERSITAT BAYREUTH, FRG. PICOSECOND DEPHASING TIMES OF Q-,
O-, AND S-BRANCH TRANSITIONS OF SIMPLE GASES ARE INVESTIGATED. COHERENT
SECOND-ORDER RAMAN SCATTERING IS OBSERVED FOR THE FIRST TIME IN D 2 .
TUE3 ULTRAFAST ENERGY TRANSFER IN LASER-GENERATED COM- PRESSIONAL SHOCK
WAVES, A. J. CAMPILLO, L S. GOLDBERG, AND P. E. SCHOEN, NAVAL RESEARCH
LABORATORY. THE ULTRAFAST ENERGY TRANSFER FROM INTENSE MULTIKILOBAR
LASER-GENERATED SHOCK WAVES TO INTRAMOLECULAR VIBRATIONAL MODES IS BEING
STUDIED US- ING TIME-RESOLVED FLUORESCENCE SPECTROSCOPY. TUE4 TRANSIENT
COHERENT RAMAN SPECTROSCOPY: TWO NOVEL WAYS OF LINE NARROWING, W. ZINTH,
M. C. NUSS, AND W. KAISER, TECHNISCHEN UNIVERSITAT M U NCHEN, FRG. TWO
NOVEL COHERENT RAMAN TECHNIQUES WITH CONTINUOUSLY TUNABLE ULTRASHORT EX-
CITATION PROVIDE SPECTRA WITH REDUCED LINEWIDTHS AND THUS IM- PROVED
RESOLUTION. A FIRST KNOWN EXPERIMENTAL DEMONSTRATION IS PRESENTED. TUE5
HOLOGRAPHI C INTERFEROMETRY USING 20-PICOSECOND ULTRAVIOLET PULSES TO
OBTAIN TIME-RESOLVED HYDRO MEASUREMENTS OF SELENIUM AND GOLD PLASMAS,
GARLAND E. BUSCH, R. R. JOHNSON, AND C. L. SHEPARD, KMS FUSION, INC. A
PLASMA-PROBING (263-NM) PULSE, FROM A TEMPORALLY COMPRESSED YLF
OSCILLATOR, DELINEATES ELECTRON DENSITIES OF VERY EARLY (10- TO
150-PSEC) SELENIUM AND GOLD PLASMAS USING HOLOGRAPHIC INTERFEROMETRY.
TUE6 TEMPORAL DEVELOPMENT OF ABSORPTION SPECTRA IN ALKALI HALIDE
CRYSTALS SUBSEQUENT TO BAND-GAP EXCITATION, W. L. FAUST, R. T. WILLIAMS,
AND B. B. CRAIG, NAVAL RESEARCH LABORATORY. WE HAVE OBSERVED SEVERAL
COMPONENTS OF TRAN- SIENT ABSORPTION IN ALKALI HALIDES. TIME SERIES OF
SPECTRA FOR NACI REFLECT THERMAL MIGRATION OF CL ON THE EXCITON
POTENTIAL SURFACE. TUESDAY, JUNE 12,1984-CONTINUED TUE7 PICOSECOND
CARRIER DYNAMICS IN GAAS/GA^ALJAS SINGLE- AND MULTI-QUANTUM-WELL
STRUCTURE, YOSHINOBU AOYAGI, YUSABURO SEGAWA, TADAKI MIYOSHI, AND SUSUMU
NAMBA, THE INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH, JAPAN. PICOSEC-
OND DYNAMICS OF TWO-DIMENSIONALLY OR ZERO-DIMENSIONALLY LOCALIZED
CARRIERS IN MULTI- AND SINGLE-QUANTUM WELLS ARE EX- AMINED BY A
PICOSECOND PHOTON-COUNTING TECHNIQUE. CARRIER LOCALIZATION IN THE WELL
AND INTERFACE EFFECTS ARE IMPORTANT PRO- CESSES IN THE CARRIER DYNAMICS
IN QUANTUM-WELL STRUCTURE. TUE8 COHERENT TRANSIENT SPECTROSCOPY WITH
ULTRA-HIGH TIME RESOLUTION USING INCOHERENT LIGHT, NORIO MORITA, TATSUO
YA- JIMA, AND YUZO ISHIDA, UNIVERSITY OF TOKYO, JAPAN. WE PRESENT A NEW
METHOD OF TRANSIENT SPECTROSCOPY FOR ULTRAFAST RELAX- ATION STUDY, WHERE
THE TIME RESOLUTION IS DETERMINED BY THE CORRELATION TIME OF INCOHERENT
LIGHT. TUE9 PHASE-COHERENT-LASER MULTIPLE-PULSE SPECTROSCOPY, W. S.
WARREN, M. BANASH, F. LOIAZA, AND F. SPANO, PRINCETON UNIVERSITY. LASER
PULSE SEQUENCES MEASURE COLLISIONAL POPU- LATION ARID POLARIZATION
TRANSFER IN L 2 + L 2 OR L 2 + O 2 AND REMOVE PULSE-PROPAGATION
ARTIFACTS IN MIXED CRYSTALS. , TUE10 KINETICS OF BOUND AND FREE EXCITONS
AT LOW DENSITIES IN SEMICONDUCTORS, X.-C. ZHANG, Y. HEFETZ, M. GAL,* AND
A. V. NURMIKKO, BROWN UNIVERSITY. THE ENERGY RELAXATION AND EVOLU- TION
IN UNUSUAL CIRCUMSTANCES OF BOUND AND FREE EXCITONS HAS BEEN STUDIED BY
SENSITIVE PHOTOMODULATION WITH EXCITE-PROBE TECHNIQUES IN SEVERAL
COMPOUND SEMICONDUCTORS. *ON LEAVE FROM INSTITUTE FOR TECHNICAL PHYSICS,
HUNGARY. TUE11 DETERMINATION OF SURFACE RECOMBINATION VELOCITIES FOR CDS
CRYSTALS IMMERSED IN ELECTROLYTE SOLUTIONS BY A PICOSECOND
PHOTOLUMINESCENCE TECHNIQUE, DAN HUPPERT, SHIMSHON GOTTESFELD, ZVI
HARZION, AND MOSHE EVENOR, TEL-AVIV UNIVERSITY, ISRAEL, AND STEPHEN W.
FELDBERG, BROOKHAVEN NA- TIONAL LABORATORY. TIME-RESOLVED
PHOTOLUMINESCENCE MEASURE- MENTS IN THE PICOSECOND DOMAIN, FROM CDS
CRYSTALS IMMERSED IN ELECTROLYTE SOLUTIONS, ARE USED TO OBTAIN
QUANTITATIVE INFOR- MATION ON SURFACE RECOMBINATION VELOCITIES. TUE12
PHASE CONJUGATION OF PICOSECOND LIGHT PULSES IN ORGANIC DYES SOLUTIONS,
V. J. KABELKA AND A. V. MIKHAILOV, ACADEMY OF SCIENCES OF THE LITHUANIAN
SSR, USSR, AND S. V. BONDARENKO, E. V. IVAKIN, AND A. S. RUBANOV,
ACADEMY OF SCIENCES OF THE BYELORUSSIAN SSR, USSR. PICOSECOND PHASE-
CONJUGATION EXPERIMENTS WERE PERFORMED IN ORGANIC-DYE SOLU- TIONS.
CONJUGATED-WAVE TIME BEHAVIOR, CONJUGATION QUALITY, AND CONJUGATION
DEPENDENCE ON PUMP-PULSE ENERGY HAVE BEEN MEASURED. TU E13 PULSE-WIDTH
DEPENDENCE OF VARIOUS BULK PHASE TRAN- SITIONS AND MORPHOLOGICAL CHANGES
OF CRYSTALLINE SILICON IR- RADIATED BY 1-FTM PICOSECOND PULSES, ARTHUR L
SMIRL, IAN W. BOYD, THOMAS F. BOGGESS, AND STEVEN C. MOSS, NORTH TEXAS
STATE UNIVERSITY. THE PULSE-WIDTH DEPENDENCE OF THE MELTING THRESHOLD
AND ASSOCIATED MORPHOLOGICAL TRANSITIONS OF CRYSTAL- LINE SILICON
IRRADIATED BY 1-^M PULSES IN THE 4-260-PSEC RANGE IS REPORTED. TUESDAY,
JUNE 12,1984-CONTINUED TUE14 SUBTHRESHOLD PICOSECOND LASER DAMAGE IN
SILICON ASSOCIATED WITH CHARGE EMISSION, Y. K. JHEE, M. F. BECKER, AND
R. M. WALSER, THE UNIVERSITY OF TEXAS AT AUSTIN. SUB- THRESHOLD
PICOSECOND LASER-INDUCED DAMAGE IN SILICON AT 1.06 /JM HAS BEEN STUDIED
BY OBSERVING CHARGE EMISSION THAT COIN- CIDES WITH DAMAGE INITIATION
FOLLOWING THE INCUBATION PERIOD. TUE15 PICOSECOND PULSE MULTIPHOTON
COHERENT PROPAGATION IN VAPORS, J.-C. DIELS AND H. VANHERZEELE, NORTH
TEXAS STATE UNIVERSITY. A NOVEL METHOD FOR THE STUDY OF MULTIPHOTON
COHERENT EXCITATION BY PICOSECOND PULSES IN VAPORS IS PRE- SENTED. THE
EXPERIMENTAL RESULTS ARE IN EXCELLENT AGREEMENT WITH THEORETICAL
PREDICTIONS. TUE16 THIRD-ORDER NONLINEAR SUSCEPTIBILITIES OF DYE SOLU-
TIONS DETERMINED BY NON-PHASE-MATCHED THIRD-HARMONIC GENERATION, A.
PENZKOFER AND W. LEUPACHER, UNIVERSITAT RE- GENSBURG, FRG. THE
THIRD-ORDER NONLINEAR SUSCEPTIBILITY VERSUS CONCENTRATION IS DETERMINED
FOR SOME DYE SOLUTIONS BY THIRD- HARMONIC GENERATION WITH PICOSECOND
PULSES. THE RESONANCE ENHANCEMENT IS ANALYZED. TUE17 STIMULATED PHOTON
ECHO FOR ELASTIC AND DEPOLARIZING COLLISON STUDIES, J.-C. KELLER AND
J.-L LE GOUET, CENTRE NA- TIONAL DE LA RECHERCHE SCIENTIFIQUE, FRANCE. A
STIMULATED PHOTON ECHO TECHNIQUE HAS BEEN USED TO INVESTIGATE SMALL-
ANGLE ELASTIC AND DEPOLARIZING COLLISIONS OF EXCITED YTTERBIUM WITH
NOBLE GASES. TUE18 EXCITATION TRANSPORT AND TRAPPING IN TWO- DIMENSIONAL
DISORDERED SYSTEMS, WALTER S. STRUVE, PHILIP AN- FINRUD, AND ROBERT L
CRACKEL, IOWA STATE UNIVERSITY. PHOTON- COUNTING FLUORESCENCE PROFILES
FROM DYE SUBMONOLAYERS ON QUARTZ ARE COMPARED WITH TWO-DIMENSIONAL
VERSIONS OF THE ANDERSON-FAYER SOLUTIONS TO THE ENERGY
TRANSPORT-TRAPPING MASTER EQUATIONS. TUE19 TEMPORAL DEPENDENCE OF
NONLINEAR OPTICAL SUSCEP- TIBILITIES OF FUSED QUARTZ AND LIQUID CCI,, J.
ETCHEPARE, G. GRILLON, I. THOMAZEAU, J. P. CHAMBARET, AND A. ORSZAG,
ECOLE POLYTECHNIQUE, FRANCE. WE HAVE USED THE OPTICAL-KERR-GATE
TECHNIQUE TO DETERMINE TEMPORALLY THE CONTRIBUTIONS TO THE NONLINEAR
SUSCEPTIBILITIES IN MATERIALS WHERE MOLECULAR RE- ORIENTATIONAL MOTIONS
ARE ABSENT. TUE20 HIGH-EXCITATION ELECTRON DYNAMICS IN GALNASP, A.
MILLER, R. J. MANNING, AND A. M. FOX, ROYAL SIGNALS AND RADAR
ESTABLISHMENT, UNITED KINGDOM, AND J. H. MARSH, UNIVERSITY OF SHEFFIELD,
UNITED KINGDOM. ABSORPTIO N SATURATION IN 1.45-FIM BAND-GAP GALNASP AT
1.054 ^M SHOWS RAPID RECOVERY, -10 PSEC, AND INDUCED INTERVALENCE BAND
ABSORPTION AT HIGH POWERS. TU E21 NONLINEAR-OPTICAL-ENERGY SWITCHING IN
SILICON, STEVEN C. MOSS, THOMAS F. BOGGESS, IAN W. BOYD, AND ARTHUR L.
SMIRL, NORTH TEXAS STATE UNIVERSITY. A PICOSECOND OPTICAL ENERGY SWITCH
THAT HAS HIGH TRANSMISSION FOR LOW-INPUT ENERGIES BUT CLAMPS THE OUTPUT
AT A LOW VALUE FOR HIGH-INPUT ENERGIES IS DESCRIBED. TUESDAY, JUNE
12,1984*CONTINUED TUE22 COLLIDING FEMTOSECOND PULSE PROPAGATION IN DYES
WITH ACCOUNT OF THEIR AMPLITUDE AND PHASE NONLINEAR RESPONSE, J.
VISHCHAKAS, A. DAUGVILA, V. KABELKA, AND A. MILYAUSKAS, ACADEMY OF
SCIENCES OF THE LITHUANIAN SSR, USSR. CALCULATIONS OF PULSE PROPAGATION
AND TWO PULSES COL- LIDING IN DYES TAKING INTO ACCOUNT THEIR NONLINEAR
AMPLITUDE AND PHASE RESPONSES AND THEIR DISPERSION HAVE BEEN PER-
FORMED. TUE23 NONLINEAR ABSORPTION AND NONLINEAR REFRACTION STUDIES IN
MEBBA, M. J. SOILEAU, WILLIAM E. WILLIAMS, ERIC W. VAN STRYLAND, AND H.
VANHERZEELE, NORTH TEXAS STATE UNIVER- SITY, AND J. L W. POHLMANN, E. J.
SHARP, AND G. L. WOOD, DEPARTMENT OF THE ARMY, NIGHT VISION
LABORATORIES. MEASURE- MENTS OF NONLINEAR ABSORPTION AND THE CRITICAL
POWER FOR SELF- FOCUSING FOR PULSE WIDTHS IN THE 25- TO 200-PSEC RANGE
ARE REPORTED FOR THE LIQUID CRYSTAL MEBBA. TUE24 HIGH-DENSITY CARRIER
GENERATION IN INDIUM ANTIMO- NIDE, M. HASSELBECK AND H. S. KWOK, SFAFE
UNIVERSITY OF NEW YORK AT BUFFALO. THE PHYSICS OF HIGH-DENSITY PLASMA
GENER- ATION IN INSB BY PICOSECOND CO 2 LASER PULSES IS COMPATIBLE WITH
NONLINEAR BAND-GAP RESONANT REFRACTION AND KELDYSH-TYPE FREE-CARRIER
GENERATION. TUE25 DISPERSION OF PHASE RESPONSE OF DYE SOLUTIONS US- ING
PICOSECOND EXCITATION, M. A. VASIL EVA, LEBEDEV PHYSICAL INSTITUTE,
USSR, J. VISHCHAKAS AND V. GULBINAS, ACADEMY OF SCIENCES OF THE
LITHUANIAN SSR, USSR, A. V. MASALOV, LEBEDEV PHYSICAL INSTITUTE, USSR,
AND V. SYRUS, ACADEMY OF SCIENCES OF THE LITHUANIAN SSR, USSR.
LIGHT-INDUCED DISPERSION OF PHASE RESPONSE OF A SOLUTION OF BLEACHABLE
DYE 3955 IS IN- VESTIGATED USING PICOSECOND-TUNABLE-WAVELENGTH LIGHT
PULSES. WEDNESDAY, JUNE 13,1984 STEINBECK FORUM ELECTRONICS DAVID M.
BLOOM, STANFORD UNIVERSITY, PRESIDER 8:30 AM INVITED PAPER WA1 MODE
LOCKING A TI:LINBO 3 -LNGAASP/LNP COMPOSITE CAVITY LASER USING A
HIGH-SPEED DIRECTIONAL COUPLER SWITCH, R. C. ALFERNESS, G. EISENSTEIN,
S. K. KOROTKY, R. S. TUCKER, L. L. BUHL, I. P. KAMINOW, AND J. J.
VESELKA, AT&T BELL LABORATORIES. HIGH-SPEED ELECTRO-OPTIC WAVEGUIDE
SWITCHES ARE REVIEWED, IN- CLUDING A RECENT APPLICATION TO INTRACAVITY
MODE LOCKING OF A 1.3-^M SEMICONDUCTOR LASER. 8:55 AM WA2 PICOSECOND
OPTICAL MEASUREMENT OF CIRCUIT EFFECTS ON CARRIER SWEEPOUT IN GAAS
SCHOTTKY DIODES, A. VON LEHMEN AND J. M. BALLANTYNE, CORNELL UNIVERSITY.
PICOSECOND TIME- RESOLVED MEASUREMENTS OF CARRIER SWEEPOUT IN A GAAS
SCHOT- TKY DIODE AS A FUNCTION OF CHANGING CIRCUIT PARAMETERS ARE
REPORTED. SWEEPOUT TIMES S4 PSEC ARE OBSERVED. 9:10 AM WA3 COLOR-CENTER
FORMATION AND RECOMBINATION IN KBR AND LIF BY PICOSECOND PULSED
ELECTRONS, KIYOSHI FUJII, RI-ICHI KIKUCHI, KAORU OASADA, AND MASAHARU
KAWANISHI, OSAKA UNIVERSITY, JAPAN. INITIAL FORMATION AND RECOMBINATION
OF F AND H CENTERS OF KBR AND LIF PRODUCED BY PULSED ELECTRONS OF
20-PSEC FWHM ARE OBSERVED WITH A PULSE RADIOLYSIS SYSTEM. 9:25 AM
INVITED PAPER WA4 SUBPICOSECOND ELECTRO-OPTIC SAMPLING USING COPLANAR
STRIP TRANSMISSION LINES, K. E. MEYER AND G. A. MOUROU, UNIVERSITY OF
ROCHESTER. COPLANAR STRIP TRANSMISSION LINES HAVE BEEN INCORPORATED INTO
THE EXISTING ELECTRO-OPTIC SAM- PLING SYSTEM. USING THIS GEOMETRY, A
TEMPORAL RESOLUTION OF 460 FSEC HAS BEEN DEMONSTRATED. 9:50 AM, WA5
CERENKOV RADIATION FROM FEMTOSECOND OPTICAL PULSES IN ELECTRO-OPTIC
MEDIA, D. H. AUSTON, K. P. CHEUNG, J. A. VALDMANIS, AND D. A. KLEINMAN,
AT&T BELL LABORATORIES. THE CERENKOV RADIATION FROM FEMTOSECOND OPTICAL
PULSES IN ELECTRO-OPTIC MATERIALS GENERATES A WAVE OF SUBPICOSECOND
DURATION IN THE TERAHERTZ SPECTRAL RANGE. 10:05 AM WA6 ULTRAVIOLET
PHOTOEMISSION STUDIES OF SURFACES USING PICOSECOND PULSES OF COHERENT
EXTREME ULTRAVIOLET RADIATION, R. HAIGHT, J. BOKOR, R. H. STORZ, J.
STARK, R. R. FREEMAN, AND P. H. BUCKSBAUM, AT&T BELL LABORATORIES. A NEW
EXPERIMENTAL SETUP FOR PERFORMING PHOTOEMISSION IS DESCRIBED THAT
UTILIZES HARMONIC GENERATION OF SHORT-PULSE-WIDTH COHERENT EXTREME-
ULTRAVIOLET LIGHT AS WELL AS TIME-OF-FLIGHT ELECTRON SPECTROSCOPY TO
STUDY THE TRANSIENT DYNAMICS OF PHOTOEXCITED ELECTRONS AT AND NEAR THE
SURFACES OF METALS AND SEMICONDUCTORS. 10:20 AM-10:40 AM COFFEE BREAK
COFFEE SERVED JEFFERS PLAZA WEDNESDAY, JUNE 13,1984*CONTINUED PHYSICS II
HOWARD R. SCHLOSSBERG, AIR FORCE OFFICE OF SCIENCE RESEARCH, PRESIDER
10:40 AM INVITED PAPER WB1 IMAGING WITH FEMTOSECOND OPTICAL PULSES, C.
V. SHANK, M. C. DOWNER, AND R. L FORK, AT&T BELL LABORATORIES. A NEW
TECHNIQUE FOR IMAGING ULTRAFAST PROCESSES IS DESCRIBED THAT HAS A TIME
RESOLUTION DETERMINED BY THE DURATION OF THE EXCITATION AND ILLUMINATION
OPTICAL PULSES. THIS TECHNIQUE HAS BEEN APPLIED TO THE PROBLEM OF
OPTICALLY INDUCED PHASE TRANSI- TIONS IN SI. 11:05 AM WB2 FEMTOSECOND
LASER INTERACTION WITH METALLIC TUNGSTEN AND NONEQUILIBRIUM ELECTRON AND
LATTICE TEMPERATURES, J. G. FUJIMOTO, MASSACHUSETTS INSTITUTE OF
TECHNOLOGY, J. M. LIN, * GTE LABORATORIES, INC., E. P. IPPEN,
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, AND N. BLOEMBERGEN, HARVARD
UNIVERSITY. OBSER- VATIONS.OF MULTIPHOTON AND THERMALLY ENHANCED
PHOTOEMIS- SION FROM TUNGSTEN EXCITED BY HIGH-INTENSITY, 75-FSEC PULSES
YIELD EVIDENCE OF NONEQUILIBRIUM ELECTRON AND LATTICE TEMPERA- TURES.
11:20 AM WB3 TIME-RESOLVED LASER-INDUCED PHASE TRANSFORMATION IN
ALUMINUM, S. WILLIAMSON, G. MOUROU, J. C. M. LI, UNIVERSITY OF
ROCHESTER. PICOSECOND ELECTRON DIFFRACTION IS USED TO MONITOR THE
SOLID-LIQUID TRANSFORMATION IN AL. THE MELT RATE IS FOUND TO BE
DEPENDENT ON THE DEGREE OF SUPERHEATING. 11:35 AM WB4 PICOSECOND
PHOTOEMISSION STUDY OF LASER-INDUCED PHASE TRANSITIONS IN SILICON, A .
M. MALVEZZI, H. KURZ, AND N. BLOEMBERGEN, HARVARD UNIVERSITY. NONLINEAR
PICOSECOND PHOTOELECTRIC EMISSION OF SILICON NEAR THE FLUENCE THRESHOLD
FOR PHASE TRANSITION HAS BEEN INVESTIGATED IN THE VISIBLE AND
ULTRAVIOLET. 11:50 AM WB5 PICOSECOND TIME-RESOLVED OPTICAL STUDIES OF
PLASMA FORMATION AND LATTICE HEATING IN SILICON, L. A. LOMPRE,* J. M.
LIUT, H. KURZ, AND N. BLOEMBERGEN, HARVARD UNIVERSITY. PLASMA KINETICS
AND LATTICE HEATING OF PICOSECOND-IRRADIATED SILICON HAVE BEEN STUDIED
WITH TIME-RESOLVED OPTICAL MEASUREMENTS UP TO LASER FLUENCES AT WHICH
MELTING OCCURS. *PERMANENT ADDRESS: CEN/SACLAY, FRANCE. TPRESENT
ADDRESS: GTE LABORATORIES. 12:05 PM WB6 DYNAMICS OF THE MOTT TRANSITION
IN CUCI WITH SUBPICO- SECOND TIME RESOLUTION, D. HULIN, ECOLE NORMALE
SUPERIEURE, FRANCE, A. ANTONETTI, ECOLE POLYTECHNIQUE, FRANCE, L. L.
CHASE, INDIANA UNIVERSITY, J. ETCHEPARE, G. GRILLON, AND A. MIGUS, ECOLE
POLYTECHNIQUE, FRANCE, AND A. MYSYROWICZ, ECOLE NOR- MALE SUPERIEURE,
FRANCE. USING SUBPICOSECOND TIME- RESOLVED LUMINESCENCE SPECTROSCOPY, WE
HAVE STUDIED THE KINETICS OF THE PLASMA TO THE EXCITON MOTT TRANSITION
IN CUCI. THE SWITCHING BETWEEN BOTH PHASES OCCURS IN LESS THAN 3 PSEC.
WEDNESDAY, JUNE 13,1984*CONTINUED WEDNESDAY, JUNE 13,1984-CONTINUED
12:20 PM WB7 PICOSECOND DYNAMICS OF HOT DENSE ELECTRON-HOLE PLASMAS IN
CRYSTALLINE AND AMORPHIZED SI AND GAAS, P. M. FAUCHET AND A. E. SIEGMAN,
STANFORD UNIVERSITY. THE IMPORTANT PARAMETERS (RELAXATION,
RECOMBINATION, AND FREE-CARRIER AB- SORPTION) OF VERY DENSE AND VERY HOT
LASER-INDUCED ELEC- TRON-HOLE PLASMAS IN SI AND GAAS HAVE BEEN MEASURED
USING A NOVEL TWO-STEP EXCITATION TECHNIQUE. 12:35 PM WB8 PICOSECOND
OPTICAL EXCITATION OF PHONONS IN AMOR- PHOUS ASJE,, C. THOMSEN, J.
STRAIT, Z. VARDENY, H. J. MARIS, AND J. TAUC, BROWN UNIVERSITY, AND J.
J. HAUSER, AT&T BELL LABORATORIES. WE OBSERVED OSCILLATIONS IN
PHOTOINDUCED TRANS- MISSION IN A-AS 2 TE 3 ASSOCIATED WITH PHONON
PROPAGATION. THIS EFFECT PROVIDES A NEW METHOD FOR STUDYING PICOSECOND
PHONON TRANSPORT. 12:50 PM WB9 PICOSECOND DYNAMICS OF POLARITONS IN
ANTHRACENE*A SPECTROCHRONOGRAPHIC STUDY, J. AAVIKSOO, A. FREIBERG, J.
LIPP- MAA, T. REINOT, P. SAARI, AND S. SAVIKHIN, ACADEMY OF SCIENCES OF
THE ESTONIAN SSR, USSR. A TIME-FREQUENCY ANALYSIS OF THE RESONANT
RAMAN/LUMINESCENCE OF ANTHRACENE CRYSTALS IS CAR- RIED OUT TOGETHER WITH
A PICOSECOND GROUP-VELOCITY MEASURE- MENT OF POLARITONS. 1:05 PM LUNCH
BREAK AFTERNOON FREE STEINBECK FORUM 6:00 PM-7:00 PM POSTDEADLINE PAPERS
STEINBECK LOBBY 7:00 PM-8:30 PM POSTER SESSION II WC1 SYNCHRONOUS MODE
LOCKING OF A GAAS/GAAIAS LASER DIODE BY A PICOSECOND OPTOELECTRONIC
SWITCH, J. KUHL AND E. O. GOBEL, MAX-PLANCK-LNSTITUT FUR
FESTKB RPERFORSCHUNG, FRG. SYNCHRONOUS MODE LOCKING OF A SEMICONDUCTOR
DIODE LASER AND AN ACOUSTO-OPTICALLY MODE-LOCKED AR-ION LASER BY A
PICOSECOND OPTOELECTRONIC SWITCH IS REPORTED. MODE-LOCKED PULSES WITH
30-PSEC WIDTH ARE GENERATED. WC2 SEQUENTIAL WAVEFORM GENERATION BY
PICOSECOND OPTO- ELECTRONIC SWITCHING, C. S. CHANG, M. C. JENG, M. J.
RHEE, AND CHI H. LEE, UNIVERSITY OF MARYLAND, AND A. ROSEN AND H. DAVIS,
RCA LABORATORIES. THE CONVERSION OF DC ENERGY TO RF PULSES HAS BEEN
DEMONSTRATED BY PICOSECOND OPTOELECTRONIC SWIT- CHING IN SILICON. A
SEQUENTIAL WAVEFORM OF 2 1 / 2 CYCLES HAS BEEN GENERATED WITH A VOLTAGE
CONVERSION EFFICIENCY OF BETTER THAN 95%. THIS TYPE OF DEVICE HAS THE
POTENTIAL OF GENERATING MEGAWATT POWER AT FREQUENCIES EXTENDING INTO THE
MILLIMETER- WAVE REGION. WC3 PICOSECOND GAIN MEASUREMENTS OF A GAAIAS
DIODE LASER, W. LENTH, MIT LINCOLN LABORATORY. USING A GAAIAS DIODE
LASER TO AMPLIFY 4-PSEC NEAR-INFRARED DYE-LASER PULSES HAS ALLOWED
MEASUREMENT OF THE DIODE RESPONSE TO AN 80-PSEC CURRENT PULSE. WC4
TRANSIENT RESPONSE MEASUREMENTS WITH ION-BEAM- DAMAGED SI, GAAS, AND INP
PHOTOCONDUCTORS, R. B. HAM- MOND, N. G. PAULTER, AND R. S. WAGNER, LOS
ALAMOS NATIONAL LABORATORY. WE REPORT TRANSIENT RESPONSE MEASUREMENTS
AT- TAINING A FEW PICOSECOND TIME RESOLUTIONS USING ION-BEAM DAMAGED SI,
GAAS, AND INP PHOTOCONDUCTORS EXCITED WITH A FEMTOSECOND LASER. WC5
PICOSECOND OPTOELECTRONIC STUDIES OF MICROSTRIP DIS- PERSION AND
SOLID-STATE DEVICE RESPONSE, DONALD E. COOPER, THE AEROSPACE
CORPORATION. PICOSECOND OPTOELECTRONIC TECH- NIQUES ARE USED TO STUDY
THE PROPAGATION OF SHORT ELECTRICAL PULSES ON MICROSTRIP LINES AND THE
FREQUENCY RESPONSE OF HIGH- SPEED SOLID-STATE DEVICES. WC6 MEASUREMENT
OF THE SOFT-X-RAY TEMPORAL AND SPECTRAL RESPONSE OF LNP:FE
PHOTOCONDUCTORS, D. R. KANIA, R. J. BARTLETT, P. WALSH, R. S. WAGNER,
AND R. B. HAMMOND, LOS ALAMOS NATIONAL LABORATORY, AND P. PIANETTA,
STANFORD SYN- CHROTON RADIATION LABORATORY. WE REPORT MEASUREMENTS OF
THE TEMPORAL AND SPECTRAL RESPONSE OF LNP:FE PHOTOCONDUCTORS EX- CITED
BY 300-PSEC (FWHM) SOFT-X-RAY PULSES. WC7 DYNAMIC RESPONSE OF MILLIMETER
WAVES IN A SEMICON- DUCTOR WAVEGUIDE TO PICOSECOND ILLUMINATION, AILEEN
M. VAUCHER, MING G. LI, C. D. STRIFFLER, AND CHI H. LEE, UNIVERSITY OF
MARYLAND. A DYNAMIC-BRIDGE MEASUREMENT TECHNIQUE HAS BEEN DEVELOPED BY
WHICH THE TIME-VARYING RESPONSE OF A SEMICON- DUCTOR WAVEGUIDE TO
ILLUMINATION BY PICOSECOND PULSES MAY BE MONITORED. WC8 GENERATION OF
INFRARED PICOSECOND PULSES BETWEEN 1.2 AND 1.8 PIN USING A
TRAVELING-WAVE DYE LASER, H. J. POLLAND, T. ELSAESSER, A. SEILMEIER, AND
W. KAISER, TECHNISCHEN UNIVERSI- TAT MUNCHEN, FRG. INFRARED DYES ARE
PUMPED EFFICIENTLY IN A TRAVELING-WAVE GEOMETRY BY SINGLE PICOSECOND
PULSES. THE IN- TENSE NARROW-BAND PULSES ARE TUNABLE OVER A WIDE
FREQUENCY RANGE. WC9 PICOSECOND PULSES FROM FUTURE SYNCHROTRON-RADIATION
SOURCES, R. C. SAH AND D. T. ATTWOOD, LAWRENCE BERKELEY LABORATORY, AND
A. P. SABERSKY, SAB PARTNERS. INTENSE, QUASI- COHERENT PHOTON PULSES
AROUND 10-PSEC LONG WILL BE AVAILABLE FROM FUTURE HIGH-BRIGHTNESS
SYNCHROTRON-RADIATION SOURCES, FROM THE VUV TO SOFT X RAYS. WC10
PHOTOCHRON STREAK CAMERA WITH GAAS PHOTOCATHODE, C. C. PHILLIPS, A. E.
HUGHES, AND W. SIBBETT, IMPERIAL COLLEGE, UNITED KINGDORH.
SEMITRANSPARENT, NEGATIVE ELECTRON-AFFINITY GAAS PHOTOCATHODES HAVING
EXPERIMENTALLY MEASURED FAST RESPONSE CHARACTERISTICS ARE DESCRIBED, AND
THEIR POTENTIAL FOR INCORPORATION INTO PICOSECOND STREAK CAMERAS IS
EVALUATED. WEDNESDAY, JUNE 13,1984-CONTINUED WC11 HIGH-REPETITION-RATE
PRODUCTION OF PICOSECOND PULSES AT WAVELENGTHS 250 NM, DANIEL B.
MCDONALD, ARGONNE NATIONAL LABORATORY. SYNCHRONOUSLY PUMPED, DYE- LASER
PULSES AMPLIFIED WITH A 5-KHZ COPPER-VAPOR LASER PRODUCE 5-MW PEAK
POWERS, SUITABLE FOR EFFICIENT HARMONIC GENERATION AND RAMAN SHIFTING.
WC12 ULTRAFAST SELF-PHASE MODULATION IN A COLLIDING-PULSE MODE-LOCKED
RING DYE LASER, YUZO ISHIDA, KAZUNORI NAGANUMA, TATSUO YAJIMA, AND L. H.
LIN, UNIVERSITY OF TOKYO, JAPAN. ULTRASHORT PULSES FROM A
COLLIDING-PULSE MODE-LOCKED DYE LASER SHOW ANOMALOUS SPECTRAL AND
TEMPORAL BEHAVIORS OWING TO SELF-PHASE MODULATION WITH VERY FAST
RELAXATION. WC13 ELECTRO-OPTIC PHASE-SENSITIVE DETECTION OF OPTICAL
EMISSION AND SCATTERING, A. Z. GENACK, J. KLAFTER, AND N. D. BHASKAR,
EXXON RESEARCH AND ENGINEERING COMPANY. THE POTENTIAL FOR MEASURING
ULTRAFAST FLUORESCENT DECAY AND OP- TICAL DEPHASING TIMES USING
ELECTRO-OPTIC PHASE-SENSITIVE DETECTION OF EMISSION AND RAMAN SCATTERING
IS DEMONSTRATED. WC14 THEORETICAL STUDIES OF ACTIVE, SYNCHRONOUS, AND
HYBRID MODE LOCKING, J. M. CATHERALL AND G. H. C. NEW, IM- PERIAL
COLLEGE, UNITED KINGDOM. EXACT AND NUMERICAL TECHNI- QUES FOR PREDICTING
VARIOUS TYPES OF SELF-CONSISTENT MODE- LOCKED PROFILES ARE CONSIDERED.
THE ROLE OF SPONTANEOUS EMIS- SION IN CAUSING JITTER IS HIGHLIGHTED.
WC15 TECHNIQUE FOR HIGHLY STABLE ACTIVE MODE LOCKING, D. COTTER, BRITISH
TELECOM RESEARCH LABORATORIES, UNITED KINGDOM. A NEW TECHNIQUE FOR
HIGHLY STABLE OPERATION OF AC- TIVELY MODE-LOCKED LASERS AND THE
PRECISION MEASUREMENT OF PULSE-TIMING JITTER USING A FIBER DELAY LINE
ARE DESCRIBED. WC16 CONTINUOUS-WAVE MODE-LOCKED ND:PHOSPHATE GLASS
LASER, SCOTT STROBEL AND CHI H. LEE, UNIVERSITY OF MARYLAND, AND
GEOFFREY L BURDGE, LABORATORY FOR PHYSICAL SCIENCES. CW MODE-LOCKED
OPERATION AT 1.053 /TM HAS BEEN OBTAINED FOR THE FIRST TIME WITH A
NEODYMIUM-PHOSPHATE GLASS ROD PUMPED WITH A CW ARGON LASER. 15-MW
AVERAGE POWER WITH 33 PSEC FWHM IN THE OPTICAL PULSE ENVELOPE HAS BEEN
MEASURED. WC17 ACTIVE MODE LOCKING USING FAST ELECTRO-OPTIC DEFLEC- TOR,
A. MORIMOTO, S. FUJIMOTO, T. KOBAYASHI, AND T. SUETA, OSAKA UNIVERSITY,
JAPAN. A NOVEL ACTIVE MODE-LOCKING TECH- NIQUE USING A FAST
ELECTRO-OPTIC DEFLECTOR IS PROPOSED. STABLE 10-PSEC ACTIVE MODE-LOCKED
PULSES WERE EXPERIMENTALLY GENER- ATED FROM A ND:GLASS LASER. WC18
STABLE ACTIVE-PASSIVE MODE LOCKING OF A ND:GLASS LASER USING #5
SATURABLE DYE, LAWRENCE S. GOLDBERG AND PAUL E. SCHOEN, NAVAL RESEARCH
LABORATORY. AN ACOUSTO-OPTIC LOSS MODULATOR AND #5 SATURABLE ABSORBING
DYE ARE USED TO MODE LOCK A ND:PHOSPHATE GLASS OSCILLATOR, RELIABLY
GENERATING STRUCTURE-FREE PULSES OF ~6-PSEC DURATION. WEDNESDAY, JUNE
13,1984-CONTINUED WC19 LIMITS TO PULSE ADVANCE AND DELAY IN ACTIVELY
MODE- LOCKED LASERS, R. S. PUTNAM, MASSACHUSETTS INSTITUTE OF
TECHNOLOGY. A FUNDAMENTAL LIMITATION ON PULSE ADVANCE OR DELAY IN
MODE-LOCKED LASERS IS SHOWN TO BE EQUAL IN SECONDS TO THE INVERSE
INTRACAVITY BANDWIDTH. WC20 NOVEL METHOD OF WAVEFORM EVALUATION OF
ULTRASHORT OPTICAL PULSES, FENG-CHEN GUO, TETSURO KOBAYASHI, AKIHIRO
MORIMOTO, TADASI SUETA, AND YOSHIO CHO, OSAKA UNIVERSITY, JAPAN. A NOVEL
METHOD FOR WAVEFORM EVALUATION OF ULTRASHORT OPTICAL PULSE THAT GIVES
THE DETAILS OF FREQUENCY CHIRPING AS WELL AS THE PULSE SHAPE HAS BEEN
PROPOSED AND APPLIED TO AC- TIVELY MODE-LOCKED DIODE-LASER PULSES. WC21
NOISE IN PICOSECOND LASER SYSTEMS: ACTIVELY MODE- LOCKED CONTINUOUS-WAVE
ND-*:YAG AND AT LASERS SYN- CHRONOUSLY PUMPING DYE LASERS, THOMAS M.
BAER, SPECTRA- PHYSICS, INC., AND DUANE D. SMITH, PURDUE UNIVERSITY. WE
PRE- SENT MEASUREMENTS ON THE NOISE SPECTRUM OF A CONTINUOUSLY PUMPED
ACOUSTO-OPTICALLY MODE-LOCKED ND-*:YAG LASER AND A SIMILARLY MODE-LOCKED
AR* LASER SYNCHRONOUSLY PUMPING A DYE LASER. WC22 500 FSEC POWERFUL
LIGHT PULSES GENERATED DIRECTLY BY PHOSPHATE GLASS LASER, B. BAREIKA, A.
PISKARSKAS, AND V. SIRUTKAITS, UNIVERSITY OF VILNIUS, USSR. WC23 PASSIVE
MODE LOCKING WITH REVERSE SATURABLE AB- SORPTION, DONALD J. HARTER AND
YEHUDA B. BAND,* ALLIED CORPO- RATION. WE DISCUSS A NEW PASSIVE
MODE-LOCKING TECHNIQUE UTILIZING AN ADDITIONAL INTRACAVITY ELEMENT
HAVING INCREASED AB- SORPTION WITH INCREASED INTENSITY. PRESENT
ADDRESS: BEN-GURION UNIVERSITY OF THE NEGEV, ISRAEL. STEINBECK
LOBBY/JEFFERS PLAZA 7:00 PM-8:30 PM RECEPTION THURSDAY, JUNE 14,1984
STEINBECK FORUM CHEMISTRY II C. B. MOORE, UNIVERSITY OF CALIFORNIA,
BERKELEY, PRESIDER 8:30 AM INVITED PAPER THA1 ENERGY FLOW FROM HIGHLY
EXCITED CH OVERTONES IN BENZENE AND ALKANES, E. L. SIBERT III, J. S.
HUTCHINSON, J. T. HYNES, AND W. P. REINHARDT, UNIVERSITY OF COLORADO.
SIMPLE CLASSICAL AND QUANTAL MODELS OF THE ULTRARAPID (~80-250-FSEC)
FLOW OF ENERGY FROM CH (CD) OVERTONES IN BENZENE (PERDEUTERO- BENZENE)
AND IN TERMINAL ALKYL METHLY GROUPS ARE SHOWN TO AC- COUNT FOR
EXPERIMENTAL VARIATION IN OVERTONE LINEWIDTHS IN- CLUDING ISOTOPIC
EFFECTS. 8:55 AM INVITED PAPER THA2 PUMP-PUMP PICOSECOND LASER
TECHNIQUES AND THE ENERGY DISTRIBUTION DYNAMICS IN MASS SPECTROMETRY, M.
A. EL- SAYED, DAVID GOBELI, JOHN SIMON, AND JENG-JIUN YANG, UNIVER- SITY
OF CALIFORNIA. IN CONVENTIONAL MASS SPECTROMETRY, IT IS NOT POSSIBLE TO
STUDY THE DYNAMICS OF PROCESSES OCCURRING IN THE TIME SCALE BETWEEN
EXCITATION (10~ 15 SEC) AND ION ANALYSIS (10~ 6 SEC). THE USE OF
TWO-COLOR PICOSECOND LASERS OF VARIABLE DELAY TIMES AS SOURCES IN MASS
SPECTROMETRY ENABLES ONE TO PROBE THE DYNAMICS OF ENERGY DISTRIBUTION
AND DISSOCIATION. THIS TECHNIQUE IS DEMONSTRATED AND APPLIED TO A NUMBER
OF ORGANIC MOLECULES FROM WHICH IMPORTANT DYNAMIC PARAMETERS OF THE
MULTIPHOTON IONIZATION DISSOCIATION PROCESS ARE OBTAINED. 9:20 AM
INVITED PAPER THA3 FEMTOSECOND TIME-RESOLVED MULTIPHOTON IONIZATION:
TECHNIQUES AND APPLICATIONS, B. I. GREENE, AT&T BELL LABORA- TORIES.
FEMTOSECOND TIME-RESOLVED MULTIPHOTON IONIZATION IS DEMONSTRATED TO BE A
POWERFUL TECHNIQUE FOR PROBING INTRA- MOLECULAR RELAXATION DYNAMICS IN
VAPOR-PHASE SAMPLES. 9:45 AM INVITED PAPER THA4 INTRAMOLECULAR
ELECTRONIC AND VIBRATIONAL REDISTRIBU- TION AND CHEMICAL TRANSFORMATION
IN ISOLATED LARGE MOLECULES*S, BENZENE, K. YOSHIHARA, M. SUMITANI, D. V.
O CONNOR, Y. TAKAGI, AND N. NAKASHIMA, INSTITUTE FOR MOLECULAR SCIENCE,
JAPAN. ELECTRONIC AND VIBRATIONAL ENERGY REDISTRIBUTION AND CHEMICAL
TRANSFORMATION IN ISOLATED S, BENZENE WERE INVESTIGATED WITH A
PICOSECOND TUNABLE UV LASER. 10:10 AM-10:30 AM COFFEE BREAK COFFEE
SERVED JEFFERS PLAZA THURSDAY, JUNE 14,1984*CONTINUED CHEMISTRY III C.
B. MOORE, UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 10:30 AM INVITED
PAPER THB1 ULTRAFAST INTRAMOLECULAR REDISTRIBUTION AND ENERGY
DISSIPATION IN SOLUTIONS: THE APPLICATION OF A MOLECULAR THER- MOMETER,
P. O. J. SCHERER, A. SEILMEIER, F. WONDRAZEK, AND W. KAISER, TECHNISCHEN
UNIVERSIFAT MUNCHEN, FRG. RAPID ( 2 PSEC) INTRAMOLECULAR VIBRATIONAL
ENERGY REDISTRIBUTION IS OBSERVED IN LARGE MOLECULES. ENERGY TRANSFER
FROM THE SOLVENT TO THE SOLUTE AND VICE VERSA IS INVESTIGATED. 10:55 AM
INVITED PAPER THB2 NEW PICOSECOND SOURCE IN THE VIBRATIONAL INFRARED, A.
L HARRIS, M. BERG, J. K. BROWN, AND C. B. HARRIS, UNIVERSITY OF
CALIFORNIA, LAWRENCE BERKELEY LABORATORY. HIGH-POWER TUNABLE PICOSECOND
PULSES IN THE VIBRATIONAL INFRARED ARE GENERATED BY STIMULATED
ELECTRONIC RAMAN SHIFTING OF VISIBLE PULSES USING THE OESIUM QS-5D
ATOMIC TRANSITION. 11:20 AM THB3 PICOSECOND TIME-RESOLVED FLUORESCENCE
SPECTRA OF LIQUID CRYSTALS: CYANOOCTYLOXYBIPHENYL, N. TAMAI AND I.
YAMAZAKI, INSTITUTE FOR MOLECULAR SCIENCE, JAPAN, AND H. MASUHARA AND N.
MATAGA, OSAKA UNIVERSITY, JAPAN. AN EXCIMER-STATE FORMATION IN LIQUID
CRYSTALS WAS STUDIED ON THE BASIS OF PICOSECOND TIME-RESOLVED
FLUORESCENCE SPECTRA. 11:35 AM THB4 THRESHOLD IONIZATION IN LIQUIDS, G.
W. ROBINSON, J. LEE, AND R. A. MOORE, TEXAS TECH UNIVERSITY. THRESHOLD
IONIZATION (TL) DIFFERS FROM EXCESS-ENERGY PHOTOIONIZATION IN
SIGNIFICANT WAYS. PICOSECOND EXPERIMENTS ALLOW THE UNIQUE STRUCTURAL
ASPECTS OF TL TO BE EXAMINED. 11:50 AM LUNCH BREAK BIOLOGY II M. KLEIN,
UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 1:30 PM INVITED PAPER THC1
ORIGIN OF CHLOROPLAST FLUORESCENCE DECAY KINETICS: PICOSECOND
FLUORESCENCE OF MUTANTS AND SUBCHLOROPLAST PAR- TICLES OF CHLAMYDOMONAS
REINHARDII AND BARLEY, ROBERT J. GULOTTY, LAURENS METS, RANDALL S.
ALBERTE, AND GRAHAM R. FLEMING, THE UNIVERSITY OF CHICAGO. CHLOROPLAST
FLUORESCENCE DECAYS ARE A COMPLEX AVERAGE OF THE DECAYS OF THE PARTS.
THIS COMPLEXITY IS UNDERSTATED BY THREE COMPONENT FITS THAT SATISFY
STATISTICAL CRITERIA. 1:55 PM THC2 ENERGY TRANSFER IN PHYCOBILISOMES OF
SYNECHOCOCCUS 6301, TOMAS GILLBRO, AKE SANDSTRBM, AND VILLY SUNDSTROM,
UNIVERSITY OF UMES, SWEDEN. DETAILS OF THE RATE OF ENERGY TRANSFER IN
PHYCOBILISOMES OF SYNECHOCOCCUS 6301 AND ITS DEPENDENCE ON THE SIZE AND
STRUCTURE OF THE PHYCOBILISOME ARE REPORTED. THURSDAY, JUNE
14,1984*CONTINUED THURSDAY, JUNE 14,1984*CONTINUED 2:10 PM THC3
PICOSECOND SINGLE-PHOTON FLUORESCENCE SPEC- TROSCOPY OF NUCLEIC ACIDS,
RUDOLF RIGLER, FLORA CLAESENS, AND GOSTA LOMAKKA, KAROLINSKA INSTITUTET,
SWEDEN. LASER-EXCITED TIME-CORRELATED SINGLE-PHOTON FLUORESCENCE
SPECTROSCOPY OF NUCLEIC ACIDS IS PERFORMED WITH 40-PSEC DETECTOR
RESPONSE. 2:25 PM THC4 RELATIONSHIP BETWEEN ENERGY TRANSFER AND CHARGE
SEPARATION IN PHOTOSYNTHESIS: PICOSECOND ABSORPTION DATA, R. V.
DANIELIUS AND A. S. PISKARSKAS, V. KAPSUKAS, VILNIUS UNIVER- SITY, USSR,
AND A. P. RAZJIVIN, M. V. LOMONOSOV MOSCOW UNIVERSITY, USSR. THE FIRST
REPORTED PICOSECOND ABSORPTION DATA ON EXCITATION TRANSFER FROM ANTENNA
TO REACTION CENTERS AND NONLINEAR ANNIHILATION PROCESSES IN INTACT
CHROMATO- PHORES FROM RHODOSPIRILLUM RUBRUM ARE PRESENTED. 2:40 PM THC5
EXCITED-STATE DYNAMICS OF NADH, D. W. BOLDRIDGE, T. H. MORTON, AND G. W.
SCOTT, UNIVERSITY OF CALIFORNIA, RIVERSIDE, AND J. H. CLARK, L A.
PHILIPS, S. P. WEBB, AND S. M. YEH, LAWRENCE BERKELEY LABORATORY AND
UNIVERSITY OF CALIFORNIA, BERKELEY. EXCITED-STATE DYNAMICS AND ENERGY
TRANSFER IN NADH ARE DISCUSSED. EMISSION AND TRANSIENT ABSORPTION
KINETICS OF EXCITED-STATE NADH IN WATER GIVE A 50% QUANTUM YIELD OF
ELEC- TRON EJECTION IN 40 PSEC. 2:55 PM-3:15 PM COFFEE BREAK COFFEE
SERVED JEFFERS PLAZA PHYSICS III C. FLYTZANIS, ECOLE POLYTECHNIQUE,
PRESIDER 3:15 PM INVITED PAPER THD1 COLLIDING-PULSE FEMTOSECOND LASER
AND APPLICATIONS TO MEASUREMENTS OF OPTICAL PARAMETERS, J.-C . DIELS,
NORTH TEXAS STATE UNIVERSITY. A LINEAR MODE-LOCKED LASER TERMINATED BY
AN ANTIRESONANT RING WILL BE DESCRIBED AS WELL AS APPLICA- TIONS OF
FEMTOSECONDS SPECTROSCOPY TO MEASUREMENTS OF THE DISPERSIVE PROPERTIES
OF OPTICAL MATERIALS AND COMPONENTS. 3:40 PM THD2 ANALYSIS OF COHERENCE
EFFECTS IN PUMP-PROBE MEA- SUREMENTS, S. L. PALFREY AND T. F. HEINZ, IBM
THOMAS J. WAT- SON RESEARCH CENTER, AND K. B. EISENTHAL, COLUMBIA
UNIVERS- ITY. WE SHOW THAT THE COHERENT ARTIFACT EXISTS IN PUMP-PROBE
MEASUREMENTS EVEN FOR COLLINEAR, COPROPAGATING BEAMS, AND WE SUGGEST A
METHOD FOR ELIMINATING ITS INFLUENCE. 3:55 PM THD3 COLLINEAR MULTIPASS
AMPLIFIER, R. L FORK AND M. C. DOWNER, AT&T BELL LABORATORIES, AND M.
ISLAM, MASSACHUSETTS INSTITUTE OF TECHNOLOGY. WE DESCRIBE A NOVEL
AMPLIFIER THAT USES MULTIPLE COLLINEAR PASSES TO PROVIDE EFFICIENT
AMPLIFICA- TION OF FEMTOSECOND OPTICAL PULSES AT HIGH REPETITION RATE.
4:10 PM THD4 TIME-DOMAIN COHERENT ACTIVE RAMAN SPECTROSCOPY OF
FREE-NITROGEN JET, S. A. AKHMANOV, N. I. KOROTEEV, S. A. MAGNIT- SKII,
V. B. MOROZOV, A. P. TARASSEVICH, V. G. TUNKIN, AND I. L SHUMAY,* MOSCOW
STATE UNIVERSITY, USSR. TH E DEPHASING KINETICS OF THE INHOMOGENEOUSLY
BROADENED Q BRANCH OF NITROGEN MOLECULES COOLED IN A SUPERSONIC JET IS
STUDIED BY PICOSECOND TIME-DOMAIN CARS TECHNIQUE. THE ROTATIONAL
TEMPERATURE AND COLLISIONAL DEPHASING TIME ARE ESTIMATED FROM GENERAL
DECAY RATE AND QUANTUM BEATS OF ROTATIONAL COMPONENTS. *ON SABBATICAL
LEAVE AT MASSACHUSETTS INSTITUTE OF TECHNOLOGY. 4:25 PM THD5 QUANTUM
FLUCTUATIONS IN PICOSECOND TRANSIENT STIMULATED RAMAN SCATTERING, N.
FABRICIUS, K. NATTERMANN, AND D. VON DER LINDE, UNIVERSIT A T-GHS-ESSEN,
FRG. THE STATISTICAL DISTRIBUTION OF THE STOKES ENERGY IN HYDROGEN IS
MEASTIRED. FLUCTUATIONS OBEYING AN EXPONENTIAL LAW ARE OBSERVED. THEY
ARE CAUSED BY INITIAL-STATE QUANTUM UNCERTAIN- TIES. 4:40 PM THD6
HOLOGRAPHIC TRANSIENT GRATING MEASUREMENTS OF EX- CITON TRANSPORT, M. D.
FAYER, STANFORD UNIVERSITY. PICOSECOND HOLOGRAPHIC GRATING EXPERIMENTS
ARE USED TO MEASURE THE TEMPERATURE DEPENDENCE OF SINGLET EXCITON
TRANSPORT IN AN- THRACENE CRYSTALS. THE METHOD PERMITS A DIRECT
MEASUREMENT OF THE TRANSPORT BY INTRODUCING AN ACCURATE DISTANCE SCALE
INTO THE SAMPLE. 4:55 PM BREAK STEINBECK LOBBY 6:00 PM-7:30 PM POSTER
SESSION III REFRESHMENTS SERVED JEFFERS PLAZA THE1 PRIMARY PROCESS IN
THE PHOTOCYCLES OF LOWPH BACTERI- ORHODOPSIN, TAKAYOSHI KOBAYASHI,
HIROYUKI OHTANI, JUN-ICHI IWAI, AND HISAO UCHIKI, UNIVERSITY OF TOKYO,
JAPAN, AND AKIRA IKEGAMI, INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH,
JAPAN. THE EFFECT OF PH ON THE PHOTOCYCLE OF BACTERIORHODOPSIN IN THE
PICOSECOND TIME DOMAIN WAS MADE CLEAR WITH THE AID OF
PICOSECOND-SPECTROSCOPY APPARATUS. THE2 SUBPICOSECOND AND PICOSECOND
TIME-RESOLVED LASER PHOTOIONIZATION OF PHENOTHIAZINE IN MICELLAR MODELS,
Y. GAUDUEL, A. MIGUS, J. L. MARTIN, J. M. LEMAITRE, AND A. ANTONETTI,
ECOLE POLYTECHNIQUE, FRANCE. SUBPICOSECOND LASER PHOTOLYSIS OF
PHENOTHIAZINE IN MICELLES LEADS TO ELECTRON SOLVATION WITH A TIME
CONSTANT OF 500 FSEC IN SLS MICELLES AND LESS THAN 100 FSEC IN REVERSED
MICELLES. THURSDAY, JUNE 14,1984-CONTINUED THURSDAY, JUNE
14,1984*CONTINUED THE3 LASER PICOSECOND DIFFERENCE SPECTROPHOTOMETRY:
THE PROBLEMS OF EXCITATION DYNAMICS IN RHODOSPIRILLUM RUBRUM
CHROMATOPHORES, R. V. DANIELIUS, VILNIUS V. KAPSUKAS UNIVER- SITY, USSR,
AND A. P. RAZJIVIN AND R. I. ROTOMSKIS, M. V. LOMONOSOV UNIVERSITY,
USSR. THE EXCITATION DECAY CURVES IN THE MINOR SPECTRAL FORM OF
LIGHT-HARVESTING ANTENNA ARE ALMOST INDEPENDENT OF THE REACTION CENTER
REDOX STATE IN RH. RUBRUM CHROMATOPHORES. THE4 PICOSECOND SPECTROSCOPY
ON THE PRIMARY PROCESS IN THE PHOTOCONVERSION OF PROTOCHLOROPHYLLIDE TO
CHIOROPHYILIDE A, TAKAYOSHI KOBAYASHI AND JUN-ICHI IWAI, UNIVERSITY OF
TOKYO, JAPAN, AND MASAHIKO IKEGAMI AND YORINAO INOUE, INSTITUTE OF
PHYSICAL AND CHEMICAL RESEARCH, JAPAN. THE TRANSIENT AB- SORPTION CHANGE
IN THE PICOSECOND TO THE SEVERAL-TENS-OF- NANOSECONDS REGIME WAS STUDIED
FOR A SOLUTION OF EXTRACTED PHOTOCHLOROPHYLLIDE HOLOCHROME OF SQUASH
PLANTS. THE5 ENERGY TRANSFER IN PHOTOSYNTHESIS, S. J. BERENS, J.
SCHEELE, W. L. BUTLER, AND D. MAGDE, UNIVERSITY OF CALIFORNIA, SAN
DIEGO. THE FLUORESCENCE DECAY KINETICS OF SPINACH CHLOROPLASTS CAN BE
UNDERSTOOD IN TERMS OF A HETEROGENEOUS BIPARTITE MODEL, WHICH
DISTINGUISHES TWO DIFFERENT TYPES OF PSII UNITS. THE6 EXCITATION ENERGY
TRANSFER IN PHYCOBILIN-CHLOROPHYLL A SYSTEM OF ALGAL INTACT CELLS, I.
YAMAZAKI, N. TAMAI, AND T. YAMAZAKI, INSTITUTE FOR MOLECULAR SCIENCE,
JAPAN, AND M. MIMURO AND Y. FUJITA, NATIONAL INSTITUTE FOR BASIC
BIOLOGY, JAPAN. PICOSECOND TIME-RESOLVED FLUORESCENCE SPECTRA WERE
MEASURED FOR THE LIGHT-HARVESTING PIGMENT SYSTEM OF ALGAL IN- TACT
CELLS. THE MECHANISM OF ENERGY TRANSFER IS DISCUSSED. TH E7
RADIATIONLESS PROCESSES IN AGGREGATED CHROMOPHORES OF THE DYE
DIETHYLTHIADICARBOCYANINE IODIDE IN AQUEOUS SOLU- TION, VILLY SUNDSTRB M
AND TOMAS BILLBRO, UNIVERSITY OF UMEA, SWEDEN. ON AGGREGATION THE
EXCITED-STATE LIFETIME OF DIETHYL- THIADICARBOCYANINE IODIDE IS FOUND TO
BECOME DRASTICALLY SHORTENED. TWO LIFETIMES INDEPENDENT OF TEMPERATURE
ARE AT- TRIBUTED TO DIMERS AND TRIMERS, RESPECTIVELY. THE8 ENERGY
DYNAMICS IN A SMALL SUBUNIT OF A PHYCOBILIN STUDIED BY PICOSECOND
FLUORESCENCE KINETICS, A. J. DAGEN AND R. R. ALFANO, THE CITY COLLEGE OF
NEW YORK, B. A. ZILINSKAS, RUTGERS UNIVERSITY, AND C. E. SWENBERG,
AFRRI. THE FLUOR- ESCENCE DYNAMICS OF THE A SUBUNIT OF PHYCOERYTHRIN
FROM NOSTOC SP WERE MEASURED. THE DECAY PROFILES WERE FIT TO A MODEL
WHERE BOTH CHROMOPHORES ABSORB AND FLUORESCE. EX- CITON ANNIHILATION WAS
SHOWN TO BE ABSENT BY ANALYSIS OF TRANSMISSION AND QUANTUM-YIELD DATA.
THE9 PICOSECOND TIME-RESOLVED FLUORESCENCE SPECTRA OF HEMATOPORPHYRIN
DERIVATIVE AND ITS RELATED PORPHYRINS, MIKIO YAMASHITA, SHUNSUKE
KOBAYASHI, AND TAKUZO SATO, ELECTRO- TECHNICAL LABORATORY, JAPAN,
MASAHID A NOMURA, TOHOKU UNIVERSITY, JAPAN, AND KATSUO AIZAWA, TOKYO
MEDICAL COLLEGE, JAPAN. PICOSECOND TIME-DEPENDENT FLUORESCENCE SPECTRA
FOR HEMATOPORPHYRIN DERIVATIVE AND PHOTOFRIN II SOLUTIONS ARE MEASURED
USING TWO-DIMENSIONAL SYNCHROSCAN STREAK CAMERAS, AND A NEW EMISSION
BAND IS FOUND. THE10 EXCITED-STATE PROTON-TRANSFER REACTIONS IN
1-NAPHTHOL, S. P. WEBB, SHEILA W. YEH, LAURA A. PHILIPS, M. A. TOLBERT,
AND J. H. CLARK, LAWRENCE BERKELEY LABORATORY AND UNIVERSITY OF
CALIFORNIA, BERKELEY. PICOSECOND TIME-RESOLVED EMISSION SPECTROSCOPY IS
USED TO PROBE THE KINETICS OF EXCITED-STATE PROTON-TRANSFER REACTIONS OF
1-NAPHTHOL IN AQUEOUS SOLUTION. THE11 EXCITED-STATE SOLVATION DYNAMICS
IN 4-AMINOPHTHALI- MIDE, SHEILA W. YEH, LAURA A. PHILIPS, S. P. WEBB, L
F. BUHSE, AND J. H. CLARK, LAWRENCE BERKELEY LABORATORY AND UNIVERSITY
OF CALIFORNIA, BERKELEY. SOLVATION DYNAMICS OF ELECTRONICALLY EXCITED
4-AMINOPHTHALIMIDE ARE INVESTIGATED WITH PICOSECOND TIME-RESOLVED
EMISSION SPECTROSCOPY. PREDICTIONS OF A TWO- STATE MODEL AND A CONTINUUM
SOLVATION MODEL ARE DISCUSSED. THE12 HIGH-YIELD PICOSECOND PHOTON ECHOES
BY PHOTO- CHEMICAL HOLE BURNING, R. KAARLI, A. REBANE, AND P. SAARI,
ACADEMY OF SCIENCES OF THE ESTONIAN SSR, USSR. A NEW TYPE OF STIMULATED
PHOTON ECHO WITH ~ 0.5 YIELD AND ITS APPLICATIONS FOR DEPHASING TIME
MEASUREMENT, TIME-DOMAIN HOLOGRAPHY, AND WAVE CONJUGATION ARE REPORTED.
THE13 THE PYRAZINE MYSTERY: A RESOLUTION, ANDRAS LORINCZ,* FRANK A.
NOVAK, DUANE D. SMITH.T AND STUART A. RICE, THE UNIVERSITY OF CHICAGO.
WE REPORT NEW MEASUREMENTS OF THE ROTATIONAL-STATE DEPENDENCE OF THE
INITIAL FLUORESCENCE DECAY OF PYRAZINE. THE APPARENTLY INCONSISTENT DATA
FROM SEVERAL SOURCES ARE RECONCILED. PERMANENT ADDRESS: HUNGARIAN
ACADEMY OF SCIENCES, HUNGARY. TPRESENT ADDRESS: PURDUE UNIVERSITY. THE14
PICOSECOND LASER STUDIES OF PHOTOINDUCED ELECTRON TRANSFER IN
PORPHYRIN-QUINONE AND RELATED MODEL SYSTEMS, NOBORU MATAGA, AKIYA KAREN,
TADASHI OKADA, YOSHITERU SAKATA, AND SOICHI MISUMI, OSAKA UNIVERSITY,
JAPAN. PICO- SECOND LASER STUDIES OF PHOTOINDUCED ELECTRON TRANSFER AND
ITS ENVIRONMENTAL EFFECTS IN PORPHYRIN-QUINONE MODEL SYSTEMS AND TYPICAL
EXCIPLEXES HAVE REVEALED THE CHARGE-SEPARATION MECHANISM. THE15
PICOSECOND TIME-RESOLVED SPECTROSCOPY OF ELECTRON- ICALLY EXCITED
TRIS(2,2 -BIPYRIDINE) RUTHENIUM(LL) DICHLORIDE, LAURA A. PHILIPS, W. T.
BROWN, S. P. WEBB, SHEILA W. YEH, AND J. H. CLARK, LAWRENCE BERKELEY
LABORATORY AN D UNIVERSITY OF CALIFORNIA, BERKELEY. THE DYNAMICS OF
ELECTRONICALLY EXCITED TRIS(2,2 -BIPYRIDINE) RUTHENIUM(LL) DICHLORIDE
ARE PROBED WITH PICOSECOND TIME-RESOLVED RESONANCE RAMAN AND EMISSION
MEASUREMENTS. THE16 EXCITED-STATE PROTON TRANSFER REACTIONS OF FLAVONOLS
IN ALCOHOLIC SOLVENTS, KEE-JU CHOI, THE STANDARD OIL COMPANY (OHIO), AND
BRUCE P. BOCZER AND MICHAEL R. TOPP, UNIVERSITY OF PENNSYLVANIA. THE
TIME-RESOLVED FLUORESCENCE STUDIES OF FLAVONOLS SHOW THAT THERE ARE TWO
DIFFERENT GROUND-STATE CON- FORMATIONS OF FLAVONOLS IN ALCOHOLIC
SOLVENTS, AND BOTH SPECIES CONTRIBUTE TO THE FORMATION OF THE TAUTOMER
THROUGH DIFFERENT CHANNELS. FRIDAY, JUNE 15,1984*CONTINUED * GENERATION
AND MEASUREMENT III E. P. IPPEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY,
PRESIDER 12:10 PM FC1 HIGH-AVERAGE-POWER MODE-LOCKED CO:MGF 2 LASER, B.
C. JOHNSON, M. ROSENBLUH,* P. F. MOULTON, AND A. MOORADIAN, MIT LINCOLN
LABORATORY. TUNABLE, ACTIVELY MODE-LOCKED CO:MGF 2 LASERS HAVE PRODUCED
PULSES AS SHORT AS 34 PSEC IN THE 1.6- TO 2.0-/TM REGION AND AVERAGE
OUTPUT POWERS OF 2 W. PERMANENT ADDRESS: BAR HAN UNIVERSITY, ISRAEL.
12:25 PM FC2 HIGH-POWER PICOSECOND PULSES IN THE INFRARED, P. B. CORKUM,
NATIONAL RESEARCH COUNCIL OF CANADA. CO 2 LASERS CAN EFFICIENTLY AMPLIFY
10-/TM PULSES AS SHORT AS 2 PSEC. SECOND-HARMONIC CONVERSION PROVIDES A
TUNABLE 5-^M SOURCE. SINGLE PULSES CONTAINING ~ 1 MJ CAN BE OBTAINED.
12:40 PM * FC3 OBSERVATION OF THE OIR PULSE, JOSHUA E. ROTHENBERG, D.
GRISCHKOWSKY, AND A. C. BALANT, IBM THOMAS J. WATSON RESEARCH CENTER. WE
HAVE MEASURED TO 0.7-PSEC RESOLUTION THE RESHAPING OF A SMALL-AREA
7-PSEC PULSE TO A OIR PULSE OWING TO ITS RESONANT PROPAGATION THROUGH AN
OPTICALLY THICK SODIUM CELL. 12:55 PM FC4 PICOSECOND TWO-COLOR PHOTON
ECHOES IN DOPED MOLECULAR SOLIDS, DOUWE A. WIERSMA, D. P. WEITEKAMP,*
AND KOOS DUPPEN, UNIVERSITY OF GRONINGEN, THE NETHERLANDS. TWO-
DIMENSIONAL PICOSECOND PHOTON-ECHO SPECTROSCOPY IS USED TO STUDY
VIBRATIONAL DEACTIVATION IN DOPED MOLECULAR SOLIDS. EVIDENCE FOR
INTERMEDIATE LEVELS IN THE RELAXATION PATHWAY IS PRESENTED. *PRESENT
ADDRESS: UNIVERSITY OF CALIFORNIA, BERKELEY. 1:10 PM FC5 SUBPICOSECOND
ACCUMULATED PHOTON ECHOES WITH IN- COHERENT LIGHT IN ND*-DOPED SILICATE
GLASS, H . NAKATSUKA, S. ASAKA, M. FUJIWARA, AND M. MATSUOKA, KYOTO
UNIVERSITY, JAPAN. ACCUMULATED PHOTON ECHOES WERE OBSERVED IN ND** GLASS
WITH AN INCOHERENT EXCITATION LIGHT. A TIME RESOLUTION OF 220 FSEC WAS
OBTAINED WITHOUT USING ULTRA-SHORT PULSES. 1:25 PM CLOSING REMARKS
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TOPICAL MEETING ON ULTRAFAST PHENOMENA A DIGEST OF TECHNICAL PAPERS
PRESENTED AT THE TOPICAL MEETING ON ULTRAFAST PHENOMENA, JUNE
12-15,1984, MONTEREY, CALIFORNIA. KN SPONSORED BY OPTICAL SOCIETY OF
AMERICA AND AH* FORCE OFFICE OF SCIENTIFIC RESEARCH THE PRINCIPLE SOURCE
OF FUNDING FOR THIS CONFERENCE IS FROM THE AIR FORCE OFFICE OF
SCIENTIFIC RESEARCH ACKNOWLEDGEMENT IN ADDITION TO THE CONTRACT SUPPORT
FOR AFOSR, THE ORGANIZERS OF THIS CONFERENCE WISH TO ACKNOWLEDGE
CONTRIBUTIONS FROM COHERENT, E. I. DU PONT DE NEMOURS & COMPANY,
HAMAMATSU CORPORATION, KLINGER SCIENTIFIC CORPORATION, IBM CORPORATION,
NEWPORT CORPORATION, QUANTEL INTERNATIONAL, QUANTRONIX CORPORATION,
SPECTRA-PHYSICS, AND STANDARD OIL COMPANY (OHIO). COPYRIGHT 1984,
OPTICAL SOCIETY OF AMERICA MONDAY, JUNE 11,1984 FERRANTE ROOM/JEFFERS
PLAZA 6:00 PM-9:00 PM REGISTRATION/REFRESHMENTS TUESDAY, JUNE 12,1984
STEINBECK FORUM 8:15 AM OPENING REMARKS DAVID H. AUSTON, AT&T BELL
LABORATORIES, CONFERENCE COCHAIRMAN KENNETH B. EISENTHAL, COLUMBIA
UNIVERSITY, CONFERENCE COCHAIRMAN GENERATION AND MEASUREMENT I A. E.
SIEGMAN, STANFORD UNIVERSITY, PRESIDER 8:30 AM INVITED PAPER TUA1
OPTICAL PULSE COMPRESSION, D. GRISCHKOWSKY, IBM THOMAS J. WATSON
RESEARCH CENTER. THE UNIQUE FEATURES OF AN OPTICAL-FIBER PULSE
COMPRESSOR ARE ILLUSTRATED WITH EXPERI- MENTAL EXAMPLES. THE ADVANTAGES
OF OPTICAL PULSE COMPRES- SION FOR MEASUREMENT APPLICATIONS ARE
DEMONSTRATED. 8:55 AM TUA2 SOLITON SHAPING MECHANISMS IN PASSIVELY MODE-
LOCKED LASERS AND NEGATIVE GROUP VELOCITY DISPERSION USING REFRACTION,
O. E. MARTINEZ, CEILAP, CITEFA-CONICET, ZUFRIATEGUIY VARELA, ARGENTINA,
AND J. P. GORDON AND R. L. FORK, AT&T BELL LABORATORIES. SOLITON SHAPING
MECHANISMS IN PASSIVELY MODE- LOCKED LASERS AS WELL AS A METHOD FOR
OBTAINING NEGATIVE GROUP-VELOCITY DISPERSION USING REFRACTIVE PHENOMENA
ARE DISCUSSED. 9:10 AM INVITED PAPER TUA3 THE SOLITON LASER, L. F.
MOLLENAUER AND R. H. STOLEN, AT&T BELL LABORATORIES. THE SOLITON LASER,
A NOVEL MODE-LOCKED DEVICE WHOSE PULSE WIDTH (2.0 TO 0.2 PSEC OBTAINED
TO DATE) AND PULSE SHAPE ARE DETERMINED BY A (VARIABLE) LENGTH OF
SINGLE- MODE FIBER IN ITS FEEDBACK LOOP, IS DESCRIBED. 9:35 AM INVITED
PAPER TUA4 COMPRESSION AND SHAPING OF FEMTOSECOND PULSES, A. M. WEINER,
J. G. FUJIMOTO, AND E. P. IPPEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY.
WE DESCRIBE THE GENERATION OF PULSES AS SHORT AS 16 FSEC BY
OPTICAL-FIBER COMPRESSION. AT HIGHER POWERS, PULSES HAVE BEEN SHORTENED
TO 37 FSEC BY TRANSIENT FOUR-WAVE MIXING. 10:00 AM TUA5 GENERATION OF
0.41-PICOSECOND PULSES BY THE SINGLE- STAGE COMPRESSION OF
FREQUENCY-DOUBLED ND:YAG LASER PULSES, A. M. JOHNSON, R. H. STOLEN, AND
W. M. SIMPSON, AT&T BELL LABORATORIES. THE 33-PSEC PULSES OF A
FREQUENCY-DOUBLED NDTYAG LASER HAVE BEEN COMPRESSED 80 X USING A SINGLE-
MODE FIBER AND MODIFIED GRATING-PAIR DELAY LINE. TUESDAY, JUNE
12,1984-CONTINUED 10:15 AM TUA6 EFFECTS OF CAVITY DISPERSION ON
FEMTOSECOND MODE- LOCKED DYE LASERS, S. DE SILVESTRI, P. LAPORTA, AND O.
SVELTO, ISTITUTO DE FISICA DEL POLITECNICO, ITALY. DISPERSION ARISING
FROM MIRRORS AND OTHER COMPONENTS OF A FEMTOSECOND LASER CAVITY IS SHOWN
TO INFLUENCE THE MODE-LOCKING BEHAVIOR FOR PULSE WIDTHS SHORTER THAN
ABOUT 200 FSEC. 10:30 AM-10:50 AM COFFEE BREAK COFFEE SERVED JEFFERS
PLAZA CHEMISTRY I GERALDINE A. KENNEY-WALLACE, UNIVERSITY OF TORONTO,
PRESIDER 10:50 AM INVITED PAPER TUB1 PICOSECOND DYNAMICS OF MOLECULES IN
SUPERSONIC BEAMS: RECENT ADVANCES, AHMED H. ZEWAIL, CALIFORNIA IN-
STITUTE OF TECHNOLOGY. NEW RESULTS ON THE PICOSECOND DYNAMICS OF
ROTATIONALLY AND VIBRATIONALLY COOLED MOLECULES ARE PRESENTED.
PUMP-PROBE AND FLUORESCENCE TECHNIQUES IN THE BEAM ARE USED TO MONITOR
INTRAMOLECULAR COHERENCE, ION- IZATION, AND RATES OF CHEMICAL REACTIONS.
11:15 AM TUB2 ROLE OF A AND A' STATES IN THE GEMINATE RECOMBINA- TION OF
MOLECULAR IODINE, DAVID F. KELLEY, N. ALAN ABUL-HAJ, AND DU-JEON JANG,
UNIVERSITY OF CALIFORNIA, LOS ANGELES. PICO- SECOND SPECTROSCOPIC
RESULTS INDICATE THAT THE A AND/OR A' STATES ARE POPULATED IN THE
RECOMBINATION OF L 2 . NO EVIDENCE FOR SLOW VIBRATIONAL RELAXATION WAS
OBSERVED. 11:30 AM TUB3 MOLECULAR DYNAMICS OF L 2 PHOTODISSOCIATION IN
CYCLO- HEXANE: EXPERIMENTAL PICOSECOND TRANSIENT ELECTRONIC AD-
SORPTION, PHILIPPE BADO,* CHARLES G. DUPUY, JOHN P. BERGSMA, AND KENT R.
WILSON, UNIVERSITY OF CALIFORNIA, SAN DIEGO. EX- PERIMENTAL AND
THEORETICAL STUDIES OF THE WAVELENGTH DEPENDENCE OF THE TRANSIENT
ELECTRONIC ABSORPTION OF L 2 IN CYCLOHEXANE FOLLOWING PHOTODISSOCIATION
AT 680 NM INDICATE THAT THE OBSERVED RESPONSE TIMES ARE LARGELY DUE TO
THE VIBRA- TIONAL DECAY OF THE ALREADY RECOMBINED L 2 MOLECULES. PRESENT
ADDRESS: UNIVERSITY OF ROCHESTER. -11:45 AM TUB4 ROLE OF THE SOLVENT IN
INTERSYSTEM CROSSING IN AROMATIC CARBENES . A CLASS OF CHEMICAL
INTERMEDIATES, E. V. SITZMANN, J. G. LANGAN, Z. Z. HO, AND K. B.
EISENTHAL, COLUM- BIA UNIVERSITY. A NOVEL SOLVENT POLARITY EFFECT HAS
BEEN OBSERV- ED FOR THE DYNAMICS, ENERGETICS, AND REACTIONS OF AROMATIC
CARBENES. IT IS REPORTED THAT THE SINGLET-TO-TRIPLET INTERSYSTEM
CROSSING RATE DECREASES WITH INCREASING SOLVENT POLARITY. THE PHENOMENON
IS RELATED TO CORRESPONDING CHANGES IN THE SINGLET-TRIPLET ENERGY GAP.
USING THE EXAMPLE OF SINGLET DIPHENYLCARBENE REACTION WITH ALCOHOLS, IT
IS SHOWN THAT THE SOLVENT POLARITY EFFECT LEADS TO UNUSUAL KINETIC
BEHAVIOR. R T-:CHN!SCH TUESDAY, JUNE 12,1984*CONTINUED TUESDAY, JUNE
12,1984-CONTINUED 12:00 M TUB5 PICOSECOND TRANSIENT RAMAN SPECTROSCOPY:
THE EXCITED-STATE STRUCTURE OF DIPHENYLPOLYENES, T. L. GUSTAFSON, D. A.
CHERNOFF, J. F. PALMER, AND D. M. ROBERTS, THE STANDARD OIL COMPANY
(OHIO). WE REPORT THE PUMP-PROBE PICOSECOND TRANSIENT RAMAN SPECTRA OF
TRANS-STILBENE AND DIPHENYLBU- TADIENE. THE RESULTS SUGGEST THAT THE
EXCITED-STATE STRUCTURE OF DIPHENYLBUTADIENE IN FLUID SOLUTION IS
SIMILAR TO TRANS-STILBENE. 12:15 PM INVITED PAPER TUB6 PICOSECOND
DYNAMICS OF ORGANIC ION PAIRS, KEVIN PETERS, UNIVERSITY OF COLORADO.
PICOSECOND ABSORPTION SPEC- TROSCOPY IS USED TO PROBE THE DYNAMICS OF
THE CHEMISTRY OF ION PAIRS FORMED BY THE PHOTOINDUCED ELECTRON TRANSFER
FROM AMINES TO KETONES. 12:40 PM LUNCH BREAK BIOLOGY I R. A. MATHIES,
UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 2:15 PM INVITED PAPER TUC1
SIDE-CHAIN MOTIONS IN PROTEINS, D. K. NEGUS AND R. M. HOCHSTRASSER,
UNIVERSITY OF PENNSYLVANIA. WE HAVE CARRIED OUT FLUORESCENCE DECAY
MEASUREMENTS AND FLUORESCENCE ANISO- TROPY STUDIES OF TRYPTOPHAN
RESIDUES IN HEMEPROTEINS. THE DECAYS OCCUR ON THE PICOSECOND TIME SCALE
AS A RESULT OF ENERGY TRANSFER. THE ANISOTROPY HAS PROVIDED INFORMATION
ABOUT DETAILED PROPERTIES OF THE EQUILIBRIUM DISTRIBUTION OF AMINO
ACIDS. 2:40 PM INVITED PAPER TUC2 RESOLUTION OF THE FEMTOSECOND-LIFETIME
SPECIES IN- VOLVED IN THE PHOTODISSOCIATION PROCESS OF HEMEPROTEINS AND
PROTOHEME, J. L MARTIN* AND A. MIGUS, ECOLE POLYTECHNIQUE, FRANCE, C.
POYART, INSERM, FRANCE, AND Y. LECARPENTIER, A. ASTIER, AND A.
ANTONETTI, ECOLE POLYTECHNIQUE, FRANCE. FEM- TOSECOND ABSORPTION
SPECTROSCOPY OF PHOTODISSOCIATED HEMO- PROTEINS AND PROTOHEME INDICATES
THAT A TRANSIENT SPECIES WITH A 350-FSEC LIFETIME IS INVOLVED IN THE
PHOTODISSOCIATION PROCESS WHATEVER THE LIGAND IS. THE SPECTRAL
PROPERTIES OF THE DEOXY-LIKE SPECIES ARE ANALYZED. * PRESENT ADDRESS:
UNIVERSITY OF CALIFORNIA, SAN DIEGO. 3:05 PM TUC3 PICOSECOND VIBRATIONAL
DYNAMICS OF PEPTIDES AND PRO- TEINS, ERIC L. CHRONISTER, RAYMOND E.
CLINE, JR., JEFFREY H. HILL, THOMAS J. KOSIC, AND DANA D. DLOTT,
UNIVERSITY OF ILLINOIS. STRUCTURAL FLUCTUATIONS AND LIGAND BINDING IN
PROTEINS AND PEP- TIDES AT LOW TEMPERATURE ARE INVESTIGATED BY
PICOSECOND COHERENT RAMAN AND PICOSECOND INFRARED SPECTROSCOPIES. 3:20
PM TUC4 NEW INVESTIGATIONS OF THE PRIMARY PROCESSES OF BAC-
TERIORHODOPSIN AND OF HALORHODOPSIN, H. J. POLLAND, W. ZINTH, AND W.
KAISER, TECHNISCHEN UNIVERSITAT M'U'NCHEN, FRG. A RED- SHIFTED FIRST
INTERMEDIATE APPEARS IN HALORHODOPSIN AND IN BACTERIORHODOPSIN WITHIN 5
AND 0.5 PSEC, RESPECTIVELY. THE SUBSEQUENT INTERMEDIATE K, 10 IN
BACTERIORHODOPSIN FORMS WITHIN 5 PSEC. 3:35 PM TUC5 PRIMARY EVENTS IN
VISION PROBED BY ULTRAFAST LASER SPECTROSCOPY, A. G. DOUKAS AND R. R.
ALFANO, THE CITY COLLEGE OF NEW YORK. THIS REVIEW DEALS WITH THE EARLY
EVENTS IM- MEDIATELY FOLLOWING THE ABSORPTION OF A PHOTON IN THE RETINA,
THE ULTRAFAST OPTICAL METHODS THAT HAVE BEEN DEVELOPED TO STUDY THEM,
AND THE VARIOUS THEORETICAL MODELS THAT ATTEMPT TO DESCRIBE THEM. 3:50
PM TUC6 PICOSECOND TIME-RESOLVED POLARIZED EMISSION SPEC- TROSCOPY OF
BILIPROTEINS: INFLUENCE OF TEMPERATURE AND AG- GREGATION, S. SCHNEIDER,
P. HEFFERLE, P. GEISELHART, T. MINDL, AND F. DORR, TECHNISCHE
UNIVERSITAT, GARCHING, FRG., AND W. JOHN AND H. SCHEER, BOTANISCHES
INSTITUT DER UNIVERSITAT M'U'N- CHEN, FRG. ENERGY TRANSFER AND
INTRAMOLECULARRELAXATION PRO- CESSES IN BILIPROTEINS ORIGINATING FROM
DIFFERENT ALGAE ARE STUDIED TO ELUCIDATE THE INFLUENCE OF
CHROMOPHORE-PROTEIN IN- TERACTION ON THE DEACTIVATION. 4:05 PM-4:25 PM
COFFEE BREAK COFFEE SERVED JEFFERS PLAZA PHYSICS I W. KAISER, TECHNICAL
UNIVERSITY OF MUNICH, PRESIDER 4:25 PM INVITED PAPER TUD1 INTERMODULAR
DYNAMICS IN LIQUIDS ON THE SUBPICO- SECOND TIME SCALE, PAUL MADDEN,
ROYAL SIGNALS & RADAI ESTABLISHMENT, U.K. THE POLARIZABILITY ASSOCIATED
WITH MOLECU LAR COLLISIONS CAUSES SYMMETRY-FORBIDDEN SPECTRA TO APPEAR
IR LIQUIDS AND ALSO CHANGES THE SHAPE OF THE ALLOWED BANDS MOLECULAR
ENCOUNTERS HAVE BEEN STUDIED IN THE FREQUENCY DOMAIN, AND THE
IMPLICATIONS TO TIME-DOMAIN STUDIES ARE CON SIDERED. 4:50 PM INVITED
PAPER TUD2 TRANSIENT INFRARED SPECTROSCOPY ON THE PICOSECONC TIME SCALE,
H.-J. HARTMANN AND A. LAUBEREAU, UNIVERSITW BAYREUTH, FRG. COHERENT
PULSE PROPAGATION IN HIGH-PRESSURE GASES WITH DRASTIC PULSE RESHAPING
ALLOWS THE DIRECT DETER MINATION OF RELAXATION TIMES. A NOVEL ISOTOPIC
BEATING PHENOMENON IS OBSERVED. 5:15 PM TUD3 TIME-RESOLVED NONLINEAR
SPECTROSCOPY OF VIBRATIONA OVERTONES AND TWO-PHONON STATES, G. M. GALE,
M. L. GEIRNAERT AND C. FLYTZANIS, ECOLE POLYTECHNIQUE, FRANCE. THE
DYNAMICS OF VIBRATIONAL OVERTONES AND TWO-PHONON BOUND STATES IN LIQUIC
AND CRYSTALLINE CS 2 ARE SELECTIVELY STUDIED BY HIGH-SENSITIVITY
PICOSECOND NONLINEAR OPTICAL TECHNIQUES. 5:30 PM BREAK TUESDAY, JUNE
12,1984*CONTINUED STEINBECK LOBBY 6:00 PM-730 PM POSTER SESSION I
REFRESHMENTS SERVED JEFFERS PLAZA TUE1 FEMTOSECOND DEPHASING
MEASUREMENTS USING TRANSIENT-INDUCED GRATINGS, ANDREW M. WEINER AND
ERICH P. IP- PEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY. TRANSIEN T
GRATING MEASUREMENTS OF FEMTOSECOND DEPHASING TIMES ARE DISCUSS- ED. OUR
TECHNIQUE PROVIDES RESOLUTION BELOW THE PULSE WIDTH AND DISTINGUISHES
CLEARLY BETWEEN HOMOGENEOUS AND IN- HOMOGENEOUS BROADENING. TUE2 NOVEL
APPLICATIONS OF COHERENT PICOSECOND RAMAN SCATTERING, H. GRAENER AND A.
LAUBEREAU, UNIVERSITAT BAYREUTH, FRG. PICOSECOND DEPHASING TIMES OF Q-,
O-, AND S-BRANCH TRANSITIONS OF SIMPLE GASES ARE INVESTIGATED. COHERENT
SECOND-ORDER RAMAN SCATTERING IS OBSERVED FOR THE FIRST TIME IN D 2 .
TUE3 ULTRAFAST ENERGY TRANSFER IN LASER-GENERATED COM- PRESSIONAL SHOCK
WAVES, A. J. CAMPILLO, L S. GOLDBERG, AND P. E. SCHOEN, NAVAL RESEARCH
LABORATORY. THE ULTRAFAST ENERGY TRANSFER FROM INTENSE MULTIKILOBAR
LASER-GENERATED SHOCK WAVES TO INTRAMOLECULAR VIBRATIONAL MODES IS BEING
STUDIED US- ING TIME-RESOLVED FLUORESCENCE SPECTROSCOPY. TUE4 TRANSIENT
COHERENT RAMAN SPECTROSCOPY: TWO NOVEL WAYS OF LINE NARROWING, W. ZINTH,
M. C. NUSS, AND W. KAISER, TECHNISCHEN UNIVERSITAT M'U'NCHEN, FRG. TWO
NOVEL COHERENT RAMAN TECHNIQUES WITH CONTINUOUSLY TUNABLE ULTRASHORT EX-
CITATION PROVIDE SPECTRA WITH REDUCED LINEWIDTHS AND THUS IM- PROVED
RESOLUTION. A FIRST KNOWN EXPERIMENTAL DEMONSTRATION IS PRESENTED. TUE5
HOLOGRAPHI C INTERFEROMETRY USING 20-PICOSECOND ULTRAVIOLET PULSES TO
OBTAIN TIME-RESOLVED HYDRO MEASUREMENTS OF SELENIUM AND GOLD PLASMAS,
GARLAND E. BUSCH, R. R. JOHNSON, AND C. L. SHEPARD, KMS FUSION, INC. A
PLASMA-PROBING (263-NM) PULSE, FROM A TEMPORALLY COMPRESSED YLF
OSCILLATOR, DELINEATES ELECTRON DENSITIES OF VERY EARLY (10- TO
150-PSEC) SELENIUM AND GOLD PLASMAS USING HOLOGRAPHIC INTERFEROMETRY.
TUE6 TEMPORAL DEVELOPMENT OF ABSORPTION SPECTRA IN ALKALI HALIDE
CRYSTALS SUBSEQUENT TO BAND-GAP EXCITATION, W. L. FAUST, R. T. WILLIAMS,
AND B. B. CRAIG, NAVAL RESEARCH LABORATORY. WE HAVE OBSERVED SEVERAL
COMPONENTS OF TRAN- SIENT ABSORPTION IN ALKALI HALIDES. TIME SERIES OF
SPECTRA FOR NACI REFLECT THERMAL MIGRATION OF CL ON THE EXCITON
POTENTIAL SURFACE. TUESDAY, JUNE 12,1984-CONTINUED TUE7 PICOSECOND
CARRIER DYNAMICS IN GAAS/GA^ALJAS SINGLE- AND MULTI-QUANTUM-WELL
STRUCTURE, YOSHINOBU AOYAGI, YUSABURO SEGAWA, TADAKI MIYOSHI, AND SUSUMU
NAMBA, THE INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH, JAPAN. PICOSEC-
OND DYNAMICS OF TWO-DIMENSIONALLY OR ZERO-DIMENSIONALLY LOCALIZED
CARRIERS IN MULTI- AND SINGLE-QUANTUM WELLS ARE EX- AMINED BY A
PICOSECOND PHOTON-COUNTING TECHNIQUE. CARRIER LOCALIZATION IN THE WELL
AND INTERFACE EFFECTS ARE IMPORTANT PRO- CESSES IN THE CARRIER DYNAMICS
IN QUANTUM-WELL STRUCTURE. TUE8 COHERENT TRANSIENT SPECTROSCOPY WITH
ULTRA-HIGH TIME RESOLUTION USING INCOHERENT LIGHT, NORIO MORITA, TATSUO
YA- JIMA, AND YUZO ISHIDA, UNIVERSITY OF TOKYO, JAPAN. WE PRESENT A NEW
METHOD OF TRANSIENT SPECTROSCOPY FOR ULTRAFAST RELAX- ATION STUDY, WHERE
THE TIME RESOLUTION IS DETERMINED BY THE CORRELATION TIME OF INCOHERENT
LIGHT. TUE9 PHASE-COHERENT-LASER MULTIPLE-PULSE SPECTROSCOPY, W. S.
WARREN, M. BANASH, F. LOIAZA, AND F. SPANO, PRINCETON UNIVERSITY. LASER
PULSE SEQUENCES MEASURE COLLISIONAL POPU- LATION ARID POLARIZATION
TRANSFER IN L 2 + L 2 OR L 2 + O 2 AND REMOVE PULSE-PROPAGATION
ARTIFACTS IN MIXED CRYSTALS. , TUE10 KINETICS OF BOUND AND FREE EXCITONS
AT LOW DENSITIES IN SEMICONDUCTORS, X.-C. ZHANG, Y. HEFETZ, M. GAL,* AND
A. V. NURMIKKO, BROWN UNIVERSITY. THE ENERGY RELAXATION AND EVOLU- TION
IN UNUSUAL CIRCUMSTANCES OF BOUND AND FREE EXCITONS HAS BEEN STUDIED BY
SENSITIVE PHOTOMODULATION WITH EXCITE-PROBE TECHNIQUES IN SEVERAL
COMPOUND SEMICONDUCTORS. *ON LEAVE FROM INSTITUTE FOR TECHNICAL PHYSICS,
HUNGARY. TUE11 DETERMINATION OF SURFACE RECOMBINATION VELOCITIES FOR CDS
CRYSTALS IMMERSED IN ELECTROLYTE SOLUTIONS BY A PICOSECOND
PHOTOLUMINESCENCE TECHNIQUE, DAN HUPPERT, SHIMSHON GOTTESFELD, ZVI
HARZION, AND MOSHE EVENOR, TEL-AVIV UNIVERSITY, ISRAEL, AND STEPHEN W.
FELDBERG, BROOKHAVEN NA- TIONAL LABORATORY. TIME-RESOLVED
PHOTOLUMINESCENCE MEASURE- MENTS IN THE PICOSECOND DOMAIN, FROM CDS
CRYSTALS IMMERSED IN ELECTROLYTE SOLUTIONS, ARE USED TO OBTAIN
QUANTITATIVE INFOR- MATION ON SURFACE RECOMBINATION VELOCITIES. TUE12
PHASE CONJUGATION OF PICOSECOND LIGHT PULSES IN ORGANIC DYES SOLUTIONS,
V. J. KABELKA AND A. V. MIKHAILOV, ACADEMY OF SCIENCES OF THE LITHUANIAN
SSR, USSR, AND S. V. BONDARENKO, E. V. IVAKIN, AND A. S. RUBANOV,
ACADEMY OF SCIENCES OF THE BYELORUSSIAN SSR, USSR. PICOSECOND PHASE-
CONJUGATION EXPERIMENTS WERE PERFORMED IN ORGANIC-DYE SOLU- TIONS.
CONJUGATED-WAVE TIME BEHAVIOR, CONJUGATION QUALITY, AND CONJUGATION
DEPENDENCE ON PUMP-PULSE ENERGY HAVE BEEN MEASURED. TU E13 PULSE-WIDTH
DEPENDENCE OF VARIOUS BULK PHASE TRAN- SITIONS AND MORPHOLOGICAL CHANGES
OF CRYSTALLINE SILICON IR- RADIATED BY 1-FTM PICOSECOND PULSES, ARTHUR L
SMIRL, IAN W. BOYD, THOMAS F. BOGGESS, AND STEVEN C. MOSS, NORTH TEXAS
STATE UNIVERSITY. THE PULSE-WIDTH DEPENDENCE OF THE MELTING THRESHOLD
AND ASSOCIATED MORPHOLOGICAL TRANSITIONS OF CRYSTAL- LINE SILICON
IRRADIATED BY 1-^M PULSES IN THE 4-260-PSEC RANGE IS REPORTED. TUESDAY,
JUNE 12,1984-CONTINUED TUE14 SUBTHRESHOLD PICOSECOND LASER DAMAGE IN
SILICON ASSOCIATED WITH CHARGE EMISSION, Y. K. JHEE, M. F. BECKER, AND
R. M. WALSER, THE UNIVERSITY OF TEXAS AT AUSTIN. SUB- THRESHOLD
PICOSECOND LASER-INDUCED DAMAGE IN SILICON AT 1.06 /JM HAS BEEN STUDIED
BY OBSERVING CHARGE EMISSION THAT COIN- CIDES WITH DAMAGE INITIATION
FOLLOWING THE INCUBATION PERIOD. TUE15 PICOSECOND PULSE MULTIPHOTON
COHERENT PROPAGATION IN VAPORS, J.-C. DIELS AND H. VANHERZEELE, NORTH
TEXAS STATE UNIVERSITY. A NOVEL METHOD FOR THE STUDY OF MULTIPHOTON
COHERENT EXCITATION BY PICOSECOND PULSES IN VAPORS IS PRE- SENTED. THE
EXPERIMENTAL RESULTS ARE IN EXCELLENT AGREEMENT WITH THEORETICAL
PREDICTIONS. TUE16 THIRD-ORDER NONLINEAR SUSCEPTIBILITIES OF DYE SOLU-
TIONS DETERMINED BY NON-PHASE-MATCHED THIRD-HARMONIC GENERATION, A.
PENZKOFER AND W. LEUPACHER, UNIVERSITAT RE- GENSBURG, FRG. THE
THIRD-ORDER NONLINEAR SUSCEPTIBILITY VERSUS CONCENTRATION IS DETERMINED
FOR SOME DYE SOLUTIONS BY THIRD- HARMONIC GENERATION WITH PICOSECOND
PULSES. THE RESONANCE ENHANCEMENT IS ANALYZED. TUE17 STIMULATED PHOTON
ECHO FOR ELASTIC AND DEPOLARIZING COLLISON STUDIES, J.-C. KELLER AND
J.-L LE GOUET, CENTRE NA- TIONAL DE LA RECHERCHE SCIENTIFIQUE, FRANCE. A
STIMULATED PHOTON ECHO TECHNIQUE HAS BEEN USED TO INVESTIGATE SMALL-
ANGLE ELASTIC AND DEPOLARIZING COLLISIONS OF EXCITED YTTERBIUM WITH
NOBLE GASES. TUE18 EXCITATION TRANSPORT AND TRAPPING IN TWO- DIMENSIONAL
DISORDERED SYSTEMS, WALTER S. STRUVE, PHILIP AN- FINRUD, AND ROBERT L
CRACKEL, IOWA STATE UNIVERSITY. PHOTON- COUNTING FLUORESCENCE PROFILES
FROM DYE SUBMONOLAYERS ON QUARTZ ARE COMPARED WITH TWO-DIMENSIONAL
VERSIONS OF THE ANDERSON-FAYER SOLUTIONS TO THE ENERGY
TRANSPORT-TRAPPING MASTER EQUATIONS. TUE19 TEMPORAL DEPENDENCE OF
NONLINEAR OPTICAL SUSCEP- TIBILITIES OF FUSED QUARTZ AND LIQUID CCI,, J.
ETCHEPARE, G. GRILLON, I. THOMAZEAU, J. P. CHAMBARET, AND A. ORSZAG,
ECOLE POLYTECHNIQUE, FRANCE. WE HAVE USED THE OPTICAL-KERR-GATE
TECHNIQUE TO DETERMINE TEMPORALLY THE CONTRIBUTIONS TO THE NONLINEAR
SUSCEPTIBILITIES IN MATERIALS WHERE MOLECULAR RE- ORIENTATIONAL MOTIONS
ARE ABSENT. TUE20 HIGH-EXCITATION ELECTRON DYNAMICS IN GALNASP, A.
MILLER, R. J. MANNING, AND A. M. FOX, ROYAL SIGNALS AND RADAR
ESTABLISHMENT, UNITED KINGDOM, AND J. H. MARSH, UNIVERSITY OF SHEFFIELD,
UNITED KINGDOM. ABSORPTIO N SATURATION IN 1.45-FIM BAND-GAP GALNASP AT
1.054 ^M SHOWS RAPID RECOVERY, -10 PSEC, AND INDUCED INTERVALENCE BAND
ABSORPTION AT HIGH POWERS. TU E21 NONLINEAR-OPTICAL-ENERGY SWITCHING IN
SILICON, STEVEN C. MOSS, THOMAS F. BOGGESS, IAN W. BOYD, AND ARTHUR L.
SMIRL, NORTH TEXAS STATE UNIVERSITY. A PICOSECOND OPTICAL ENERGY SWITCH
THAT HAS HIGH TRANSMISSION FOR LOW-INPUT ENERGIES BUT CLAMPS THE OUTPUT
AT A LOW VALUE FOR HIGH-INPUT ENERGIES IS DESCRIBED. TUESDAY, JUNE
12,1984*CONTINUED TUE22 COLLIDING FEMTOSECOND PULSE PROPAGATION IN DYES
WITH ACCOUNT OF THEIR AMPLITUDE AND PHASE NONLINEAR RESPONSE, J.
VISHCHAKAS, A. DAUGVILA, V. KABELKA, AND A. MILYAUSKAS, ACADEMY OF
SCIENCES OF THE LITHUANIAN SSR, USSR. CALCULATIONS OF PULSE PROPAGATION
AND TWO PULSES COL- LIDING IN DYES TAKING INTO ACCOUNT THEIR NONLINEAR
AMPLITUDE AND PHASE RESPONSES AND THEIR DISPERSION HAVE BEEN PER-
FORMED. TUE23 NONLINEAR ABSORPTION AND NONLINEAR REFRACTION STUDIES IN
MEBBA, M. J. SOILEAU, WILLIAM E. WILLIAMS, ERIC W. VAN STRYLAND, AND H.
VANHERZEELE, NORTH TEXAS STATE UNIVER- SITY, AND J. L W. POHLMANN, E. J.
SHARP, AND G. L. WOOD, DEPARTMENT OF THE ARMY, NIGHT VISION
LABORATORIES. MEASURE- MENTS OF NONLINEAR ABSORPTION AND THE CRITICAL
POWER FOR SELF- FOCUSING FOR PULSE WIDTHS IN THE 25- TO 200-PSEC RANGE
ARE REPORTED FOR THE LIQUID CRYSTAL MEBBA. TUE24 HIGH-DENSITY CARRIER
GENERATION IN INDIUM ANTIMO- NIDE, M. HASSELBECK AND H. S. KWOK, SFAFE
UNIVERSITY OF NEW YORK AT BUFFALO. THE PHYSICS OF HIGH-DENSITY PLASMA
GENER- ATION IN INSB BY PICOSECOND CO 2 LASER PULSES IS COMPATIBLE WITH
NONLINEAR BAND-GAP RESONANT REFRACTION AND KELDYSH-TYPE FREE-CARRIER
GENERATION. TUE25 DISPERSION OF PHASE RESPONSE OF DYE SOLUTIONS US- ING
PICOSECOND EXCITATION, M. A. VASIL'EVA, LEBEDEV PHYSICAL INSTITUTE,
USSR, J. VISHCHAKAS AND V. GULBINAS, ACADEMY OF SCIENCES OF THE
LITHUANIAN SSR, USSR, A. V. MASALOV, LEBEDEV PHYSICAL INSTITUTE, USSR,
AND V. SYRUS, ACADEMY OF SCIENCES OF THE LITHUANIAN SSR, USSR.
LIGHT-INDUCED DISPERSION OF PHASE RESPONSE OF A SOLUTION OF BLEACHABLE
DYE 3955 IS IN- VESTIGATED USING PICOSECOND-TUNABLE-WAVELENGTH LIGHT
PULSES. WEDNESDAY, JUNE 13,1984 STEINBECK FORUM ELECTRONICS DAVID M.
BLOOM, STANFORD UNIVERSITY, PRESIDER 8:30 AM INVITED PAPER WA1 MODE
LOCKING A TI:LINBO 3 -LNGAASP/LNP COMPOSITE CAVITY LASER USING A
HIGH-SPEED DIRECTIONAL COUPLER SWITCH, R. C. ALFERNESS, G. EISENSTEIN,
S. K. KOROTKY, R. S. TUCKER, L. L. BUHL, I. P. KAMINOW, AND J. J.
VESELKA, AT&T BELL LABORATORIES. HIGH-SPEED ELECTRO-OPTIC WAVEGUIDE
SWITCHES ARE REVIEWED, IN- CLUDING A RECENT APPLICATION TO INTRACAVITY
MODE LOCKING OF A 1.3-^M SEMICONDUCTOR LASER. 8:55 AM WA2 PICOSECOND
OPTICAL MEASUREMENT OF CIRCUIT EFFECTS ON CARRIER SWEEPOUT IN GAAS
SCHOTTKY DIODES, A. VON LEHMEN AND J. M. BALLANTYNE, CORNELL UNIVERSITY.
PICOSECOND TIME- RESOLVED MEASUREMENTS OF CARRIER SWEEPOUT IN A GAAS
SCHOT- TKY DIODE AS A FUNCTION OF CHANGING CIRCUIT PARAMETERS ARE
REPORTED. SWEEPOUT TIMES S4 PSEC ARE OBSERVED. 9:10 AM WA3 COLOR-CENTER
FORMATION AND RECOMBINATION IN KBR AND LIF BY PICOSECOND PULSED
ELECTRONS, KIYOSHI FUJII, RI-ICHI KIKUCHI, KAORU OASADA, AND MASAHARU
KAWANISHI, OSAKA UNIVERSITY, JAPAN. INITIAL FORMATION AND RECOMBINATION
OF F AND H CENTERS OF KBR AND LIF PRODUCED BY PULSED ELECTRONS OF
20-PSEC FWHM ARE OBSERVED WITH A PULSE RADIOLYSIS SYSTEM. 9:25 AM
INVITED PAPER WA4 SUBPICOSECOND ELECTRO-OPTIC SAMPLING USING COPLANAR
STRIP TRANSMISSION LINES, K. E. MEYER AND G. A. MOUROU, UNIVERSITY OF
ROCHESTER. COPLANAR STRIP TRANSMISSION LINES HAVE BEEN INCORPORATED INTO
THE EXISTING ELECTRO-OPTIC SAM- PLING SYSTEM. USING THIS GEOMETRY, A
TEMPORAL RESOLUTION OF 460 FSEC HAS BEEN DEMONSTRATED. 9:50 AM, WA5
CERENKOV RADIATION FROM FEMTOSECOND OPTICAL PULSES IN ELECTRO-OPTIC
MEDIA, D. H. AUSTON, K. P. CHEUNG, J. A. VALDMANIS, AND D. A. KLEINMAN,
AT&T BELL LABORATORIES. THE CERENKOV RADIATION FROM FEMTOSECOND OPTICAL
PULSES IN ELECTRO-OPTIC MATERIALS GENERATES A WAVE OF SUBPICOSECOND
DURATION IN THE TERAHERTZ SPECTRAL RANGE. 10:05 AM WA6 ULTRAVIOLET
PHOTOEMISSION STUDIES OF SURFACES USING PICOSECOND PULSES OF COHERENT
EXTREME ULTRAVIOLET RADIATION, R. HAIGHT, J. BOKOR, R. H. STORZ, J.
STARK, R. R. FREEMAN, AND P. H. BUCKSBAUM, AT&T BELL LABORATORIES. A NEW
EXPERIMENTAL SETUP FOR PERFORMING PHOTOEMISSION IS DESCRIBED THAT
UTILIZES HARMONIC GENERATION OF SHORT-PULSE-WIDTH COHERENT EXTREME-
ULTRAVIOLET LIGHT AS WELL AS TIME-OF-FLIGHT ELECTRON SPECTROSCOPY TO
STUDY THE TRANSIENT DYNAMICS OF PHOTOEXCITED ELECTRONS AT AND NEAR THE
SURFACES OF METALS AND SEMICONDUCTORS. 10:20 AM-10:40 AM COFFEE BREAK
COFFEE SERVED JEFFERS PLAZA WEDNESDAY, JUNE 13,1984*CONTINUED PHYSICS II
HOWARD R. SCHLOSSBERG, AIR FORCE OFFICE OF SCIENCE RESEARCH, PRESIDER
10:40 AM INVITED PAPER WB1 IMAGING WITH FEMTOSECOND OPTICAL PULSES, C.
V. SHANK, M. C. DOWNER, AND R. L FORK, AT&T BELL LABORATORIES. A NEW
TECHNIQUE FOR IMAGING ULTRAFAST PROCESSES IS DESCRIBED THAT HAS A TIME
RESOLUTION DETERMINED BY THE DURATION OF THE EXCITATION AND ILLUMINATION
OPTICAL PULSES. THIS TECHNIQUE HAS BEEN APPLIED TO THE PROBLEM OF
OPTICALLY INDUCED PHASE TRANSI- TIONS IN SI. 11:05 AM WB2 FEMTOSECOND
LASER INTERACTION WITH METALLIC TUNGSTEN AND NONEQUILIBRIUM ELECTRON AND
LATTICE TEMPERATURES, J. G. FUJIMOTO, MASSACHUSETTS INSTITUTE OF
TECHNOLOGY, J. M. LIN, * GTE LABORATORIES, INC., E. P. IPPEN,
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, AND N. BLOEMBERGEN, HARVARD
UNIVERSITY. OBSER- VATIONS.OF MULTIPHOTON AND THERMALLY ENHANCED
PHOTOEMIS- SION FROM TUNGSTEN EXCITED BY HIGH-INTENSITY, 75-FSEC PULSES
YIELD EVIDENCE OF NONEQUILIBRIUM ELECTRON AND LATTICE TEMPERA- TURES.
11:20 AM WB3 TIME-RESOLVED LASER-INDUCED PHASE TRANSFORMATION IN
ALUMINUM, S. WILLIAMSON, G. MOUROU, J. C. M. LI, UNIVERSITY OF
ROCHESTER. PICOSECOND ELECTRON DIFFRACTION IS USED TO MONITOR THE
SOLID-LIQUID TRANSFORMATION IN AL. THE MELT RATE IS FOUND TO BE
DEPENDENT ON THE DEGREE OF SUPERHEATING. 11:35 AM WB4 PICOSECOND
PHOTOEMISSION STUDY OF LASER-INDUCED PHASE TRANSITIONS IN SILICON, A .
M. MALVEZZI, H. KURZ, AND N. BLOEMBERGEN, HARVARD UNIVERSITY. NONLINEAR
PICOSECOND PHOTOELECTRIC EMISSION OF SILICON NEAR THE FLUENCE THRESHOLD
FOR PHASE TRANSITION HAS BEEN INVESTIGATED IN THE VISIBLE AND
ULTRAVIOLET. 11:50 AM WB5 PICOSECOND TIME-RESOLVED OPTICAL STUDIES OF
PLASMA FORMATION AND LATTICE HEATING IN SILICON, L. A. LOMPRE,* J. M.
LIUT, H. KURZ, AND N. BLOEMBERGEN, HARVARD UNIVERSITY. PLASMA KINETICS
AND LATTICE HEATING OF PICOSECOND-IRRADIATED SILICON HAVE BEEN STUDIED
WITH TIME-RESOLVED OPTICAL MEASUREMENTS UP TO LASER FLUENCES AT WHICH
MELTING OCCURS. *PERMANENT ADDRESS: CEN/SACLAY, FRANCE. TPRESENT
ADDRESS: GTE LABORATORIES. 12:05 PM WB6 DYNAMICS OF THE MOTT TRANSITION
IN CUCI WITH SUBPICO- SECOND TIME RESOLUTION, D. HULIN, ECOLE NORMALE
SUPERIEURE, FRANCE, A. ANTONETTI, ECOLE POLYTECHNIQUE, FRANCE, L. L.
CHASE, INDIANA UNIVERSITY, J. ETCHEPARE, G. GRILLON, AND A. MIGUS, ECOLE
POLYTECHNIQUE, FRANCE, AND A. MYSYROWICZ, ECOLE NOR- MALE SUPERIEURE,
FRANCE. USING SUBPICOSECOND TIME- RESOLVED LUMINESCENCE SPECTROSCOPY, WE
HAVE STUDIED THE KINETICS OF THE PLASMA TO THE EXCITON MOTT TRANSITION
IN CUCI. THE SWITCHING BETWEEN BOTH PHASES OCCURS IN LESS THAN 3 PSEC.
WEDNESDAY, JUNE 13,1984*CONTINUED WEDNESDAY, JUNE 13,1984-CONTINUED
12:20 PM WB7 PICOSECOND DYNAMICS OF HOT DENSE ELECTRON-HOLE PLASMAS IN
CRYSTALLINE AND AMORPHIZED SI AND GAAS, P. M. FAUCHET AND A. E. SIEGMAN,
STANFORD UNIVERSITY. THE IMPORTANT PARAMETERS (RELAXATION,
RECOMBINATION, AND FREE-CARRIER AB- SORPTION) OF VERY DENSE AND VERY HOT
LASER-INDUCED ELEC- TRON-HOLE PLASMAS IN SI AND GAAS HAVE BEEN MEASURED
USING A NOVEL TWO-STEP EXCITATION TECHNIQUE. 12:35 PM WB8 PICOSECOND
OPTICAL EXCITATION OF PHONONS IN AMOR- PHOUS ASJE,, C. THOMSEN, J.
STRAIT, Z. VARDENY, H. J. MARIS, AND J. TAUC, BROWN UNIVERSITY, AND J.
J. HAUSER, AT&T BELL LABORATORIES. WE OBSERVED OSCILLATIONS IN
PHOTOINDUCED TRANS- MISSION IN A-AS 2 TE 3 ASSOCIATED WITH PHONON
PROPAGATION. THIS EFFECT PROVIDES A NEW METHOD FOR STUDYING PICOSECOND
PHONON TRANSPORT. 12:50 PM WB9 PICOSECOND DYNAMICS OF POLARITONS IN
ANTHRACENE*A SPECTROCHRONOGRAPHIC STUDY, J. AAVIKSOO, A. FREIBERG, J.
LIPP- MAA, T. REINOT, P. SAARI, AND S. SAVIKHIN, ACADEMY OF SCIENCES OF
THE ESTONIAN SSR, USSR. A TIME-FREQUENCY ANALYSIS OF THE RESONANT
RAMAN/LUMINESCENCE OF ANTHRACENE CRYSTALS IS CAR- RIED OUT TOGETHER WITH
A PICOSECOND GROUP-VELOCITY MEASURE- MENT OF POLARITONS. 1:05 PM LUNCH
BREAK AFTERNOON FREE STEINBECK FORUM 6:00 PM-7:00 PM POSTDEADLINE PAPERS
STEINBECK LOBBY 7:00 PM-8:30 PM POSTER SESSION II WC1 SYNCHRONOUS MODE
LOCKING OF A GAAS/GAAIAS LASER DIODE BY A PICOSECOND OPTOELECTRONIC
SWITCH, J. KUHL AND E. O. GOBEL, MAX-PLANCK-LNSTITUT FUR
FESTKB'RPERFORSCHUNG, FRG. SYNCHRONOUS MODE LOCKING OF A SEMICONDUCTOR
DIODE LASER AND AN ACOUSTO-OPTICALLY MODE-LOCKED AR-ION LASER BY A
PICOSECOND OPTOELECTRONIC SWITCH IS REPORTED. MODE-LOCKED PULSES WITH
30-PSEC WIDTH ARE GENERATED. WC2 SEQUENTIAL WAVEFORM GENERATION BY
PICOSECOND OPTO- ELECTRONIC SWITCHING, C. S. CHANG, M. C. JENG, M. J.
RHEE, AND CHI H. LEE, UNIVERSITY OF MARYLAND, AND A. ROSEN AND H. DAVIS,
RCA LABORATORIES. THE CONVERSION OF DC ENERGY TO RF PULSES HAS BEEN
DEMONSTRATED BY PICOSECOND OPTOELECTRONIC SWIT- CHING IN SILICON. A
SEQUENTIAL WAVEFORM OF 2 1 / 2 CYCLES HAS BEEN GENERATED WITH A VOLTAGE
CONVERSION EFFICIENCY OF BETTER THAN 95%. THIS TYPE OF DEVICE HAS THE
POTENTIAL OF GENERATING MEGAWATT POWER AT FREQUENCIES EXTENDING INTO THE
MILLIMETER- WAVE REGION. WC3 PICOSECOND GAIN MEASUREMENTS OF A GAAIAS
DIODE LASER, W. LENTH, MIT LINCOLN LABORATORY. USING A GAAIAS DIODE
LASER TO AMPLIFY 4-PSEC NEAR-INFRARED DYE-LASER PULSES HAS ALLOWED
MEASUREMENT OF THE DIODE RESPONSE TO AN 80-PSEC CURRENT PULSE. WC4
TRANSIENT RESPONSE MEASUREMENTS WITH ION-BEAM- DAMAGED SI, GAAS, AND INP
PHOTOCONDUCTORS, R. B. HAM- MOND, N. G. PAULTER, AND R. S. WAGNER, LOS
ALAMOS NATIONAL LABORATORY. WE REPORT TRANSIENT RESPONSE MEASUREMENTS
AT- TAINING A FEW PICOSECOND TIME RESOLUTIONS USING ION-BEAM DAMAGED SI,
GAAS, AND INP PHOTOCONDUCTORS EXCITED WITH A FEMTOSECOND LASER. WC5
PICOSECOND OPTOELECTRONIC STUDIES OF MICROSTRIP DIS- PERSION AND
SOLID-STATE DEVICE RESPONSE, DONALD E. COOPER, THE AEROSPACE
CORPORATION. PICOSECOND OPTOELECTRONIC TECH- NIQUES ARE USED TO STUDY
THE PROPAGATION OF SHORT ELECTRICAL PULSES ON MICROSTRIP LINES AND THE
FREQUENCY RESPONSE OF HIGH- SPEED SOLID-STATE DEVICES. WC6 MEASUREMENT
OF THE SOFT-X-RAY TEMPORAL AND SPECTRAL RESPONSE OF LNP:FE
PHOTOCONDUCTORS, D. R. KANIA, R. J. BARTLETT, P. WALSH, R. S. WAGNER,
AND R. B. HAMMOND, LOS ALAMOS NATIONAL LABORATORY, AND P. PIANETTA,
STANFORD SYN- CHROTON RADIATION LABORATORY. WE REPORT MEASUREMENTS OF
THE TEMPORAL AND SPECTRAL RESPONSE OF LNP:FE PHOTOCONDUCTORS EX- CITED
BY 300-PSEC (FWHM) SOFT-X-RAY PULSES. WC7 DYNAMIC RESPONSE OF MILLIMETER
WAVES IN A SEMICON- DUCTOR WAVEGUIDE TO PICOSECOND ILLUMINATION, AILEEN
M. VAUCHER, MING G. LI, C. D. STRIFFLER, AND CHI H. LEE, UNIVERSITY OF
MARYLAND. A DYNAMIC-BRIDGE MEASUREMENT TECHNIQUE HAS BEEN DEVELOPED BY
WHICH THE TIME-VARYING RESPONSE OF A SEMICON- DUCTOR WAVEGUIDE TO
ILLUMINATION BY PICOSECOND PULSES MAY BE MONITORED. WC8 GENERATION OF
INFRARED PICOSECOND PULSES BETWEEN 1.2 AND 1.8 PIN USING A
TRAVELING-WAVE DYE LASER, H. J. POLLAND, T. ELSAESSER, A. SEILMEIER, AND
W. KAISER, TECHNISCHEN UNIVERSI- TAT MUNCHEN, FRG. INFRARED DYES ARE
PUMPED EFFICIENTLY IN A TRAVELING-WAVE GEOMETRY BY SINGLE PICOSECOND
PULSES. THE IN- TENSE NARROW-BAND PULSES ARE TUNABLE OVER A WIDE
FREQUENCY RANGE. WC9 PICOSECOND PULSES FROM FUTURE SYNCHROTRON-RADIATION
SOURCES, R. C. SAH AND D. T. ATTWOOD, LAWRENCE BERKELEY LABORATORY, AND
A. P. SABERSKY, SAB PARTNERS. INTENSE, QUASI- COHERENT PHOTON PULSES
AROUND 10-PSEC LONG WILL BE AVAILABLE FROM FUTURE HIGH-BRIGHTNESS
SYNCHROTRON-RADIATION SOURCES, FROM THE VUV TO SOFT X RAYS. WC10
PHOTOCHRON STREAK CAMERA WITH GAAS PHOTOCATHODE, C. C. PHILLIPS, A. E.
HUGHES, AND W. SIBBETT, IMPERIAL COLLEGE, UNITED KINGDORH.
SEMITRANSPARENT, NEGATIVE ELECTRON-AFFINITY GAAS PHOTOCATHODES HAVING
EXPERIMENTALLY MEASURED FAST RESPONSE CHARACTERISTICS ARE DESCRIBED, AND
THEIR POTENTIAL FOR INCORPORATION INTO PICOSECOND STREAK CAMERAS IS
EVALUATED. WEDNESDAY, JUNE 13,1984-CONTINUED WC11 HIGH-REPETITION-RATE
PRODUCTION OF PICOSECOND PULSES AT WAVELENGTHS 250 NM, DANIEL B.
MCDONALD, ARGONNE NATIONAL LABORATORY. SYNCHRONOUSLY PUMPED, DYE- LASER
PULSES AMPLIFIED WITH A 5-KHZ COPPER-VAPOR LASER PRODUCE 5-MW PEAK
POWERS, SUITABLE FOR EFFICIENT HARMONIC GENERATION AND RAMAN SHIFTING.
WC12 ULTRAFAST SELF-PHASE MODULATION IN A COLLIDING-PULSE MODE-LOCKED
RING DYE LASER, YUZO ISHIDA, KAZUNORI NAGANUMA, TATSUO YAJIMA, AND L. H.
LIN, UNIVERSITY OF TOKYO, JAPAN. ULTRASHORT PULSES FROM A
COLLIDING-PULSE MODE-LOCKED DYE LASER SHOW ANOMALOUS SPECTRAL AND
TEMPORAL BEHAVIORS OWING TO SELF-PHASE MODULATION WITH VERY FAST
RELAXATION. WC13 ELECTRO-OPTIC PHASE-SENSITIVE DETECTION OF OPTICAL
EMISSION AND SCATTERING, A. Z. GENACK, J. KLAFTER, AND N. D. BHASKAR,
EXXON RESEARCH AND ENGINEERING COMPANY. THE POTENTIAL FOR MEASURING
ULTRAFAST FLUORESCENT DECAY AND OP- TICAL DEPHASING TIMES USING
ELECTRO-OPTIC PHASE-SENSITIVE DETECTION OF EMISSION AND RAMAN SCATTERING
IS DEMONSTRATED. WC14 THEORETICAL STUDIES OF ACTIVE, SYNCHRONOUS, AND
HYBRID MODE LOCKING, J. M. CATHERALL AND G. H. C. NEW, IM- PERIAL
COLLEGE, UNITED KINGDOM. EXACT AND NUMERICAL TECHNI- QUES FOR PREDICTING
VARIOUS TYPES OF SELF-CONSISTENT MODE- LOCKED PROFILES ARE CONSIDERED.
THE ROLE OF SPONTANEOUS EMIS- SION IN CAUSING JITTER IS HIGHLIGHTED.
WC15 TECHNIQUE FOR HIGHLY STABLE ACTIVE MODE LOCKING, D. COTTER, BRITISH
TELECOM RESEARCH LABORATORIES, UNITED KINGDOM. A NEW TECHNIQUE FOR
HIGHLY STABLE OPERATION OF AC- TIVELY MODE-LOCKED LASERS AND THE
PRECISION MEASUREMENT OF PULSE-TIMING JITTER USING A FIBER DELAY LINE
ARE DESCRIBED. WC16 CONTINUOUS-WAVE MODE-LOCKED ND:PHOSPHATE GLASS
LASER, SCOTT STROBEL AND CHI H. LEE, UNIVERSITY OF MARYLAND, AND
GEOFFREY L BURDGE, LABORATORY FOR PHYSICAL SCIENCES. CW MODE-LOCKED
OPERATION AT 1.053 /TM HAS BEEN OBTAINED FOR THE FIRST TIME WITH A
NEODYMIUM-PHOSPHATE GLASS ROD PUMPED WITH A CW ARGON LASER. 15-MW
AVERAGE POWER WITH 33 PSEC FWHM IN THE OPTICAL PULSE ENVELOPE HAS BEEN
MEASURED. WC17 ACTIVE MODE LOCKING USING FAST ELECTRO-OPTIC DEFLEC- TOR,
A. MORIMOTO, S. FUJIMOTO, T. KOBAYASHI, AND T. SUETA, OSAKA UNIVERSITY,
JAPAN. A NOVEL ACTIVE MODE-LOCKING TECH- NIQUE USING A FAST
ELECTRO-OPTIC DEFLECTOR IS PROPOSED. STABLE 10-PSEC ACTIVE MODE-LOCKED
PULSES WERE EXPERIMENTALLY GENER- ATED FROM A ND:GLASS LASER. WC18
STABLE ACTIVE-PASSIVE MODE LOCKING OF A ND:GLASS LASER USING #5
SATURABLE DYE, LAWRENCE S. GOLDBERG AND PAUL E. SCHOEN, NAVAL RESEARCH
LABORATORY. AN ACOUSTO-OPTIC LOSS MODULATOR AND #5 SATURABLE ABSORBING
DYE ARE USED TO MODE LOCK A ND:PHOSPHATE GLASS OSCILLATOR, RELIABLY
GENERATING STRUCTURE-FREE PULSES OF ~6-PSEC DURATION. WEDNESDAY, JUNE
13,1984-CONTINUED WC19 LIMITS TO PULSE ADVANCE AND DELAY IN ACTIVELY
MODE- LOCKED LASERS, R. S. PUTNAM, MASSACHUSETTS INSTITUTE OF
TECHNOLOGY. A FUNDAMENTAL LIMITATION ON PULSE ADVANCE OR DELAY IN
MODE-LOCKED LASERS IS SHOWN TO BE EQUAL IN SECONDS TO THE INVERSE
INTRACAVITY BANDWIDTH. WC20 NOVEL METHOD OF WAVEFORM EVALUATION OF
ULTRASHORT OPTICAL PULSES, FENG-CHEN GUO, TETSURO KOBAYASHI, AKIHIRO
MORIMOTO, TADASI SUETA, AND YOSHIO CHO, OSAKA UNIVERSITY, JAPAN. A NOVEL
METHOD FOR WAVEFORM EVALUATION OF ULTRASHORT OPTICAL PULSE THAT GIVES
THE DETAILS OF FREQUENCY CHIRPING AS WELL AS THE PULSE SHAPE HAS BEEN
PROPOSED AND APPLIED TO AC- TIVELY MODE-LOCKED DIODE-LASER PULSES. WC21
NOISE IN PICOSECOND LASER SYSTEMS: ACTIVELY MODE- LOCKED CONTINUOUS-WAVE
ND-*:YAG AND AT LASERS SYN- CHRONOUSLY PUMPING DYE LASERS, THOMAS M.
BAER, SPECTRA- PHYSICS, INC., AND DUANE D. SMITH, PURDUE UNIVERSITY. WE
PRE- SENT MEASUREMENTS ON THE NOISE SPECTRUM OF A CONTINUOUSLY PUMPED
ACOUSTO-OPTICALLY MODE-LOCKED ND-*:YAG LASER AND A SIMILARLY MODE-LOCKED
AR* LASER SYNCHRONOUSLY PUMPING A DYE LASER. WC22 500 FSEC POWERFUL
LIGHT PULSES GENERATED DIRECTLY BY PHOSPHATE GLASS LASER, B. BAREIKA, A.
PISKARSKAS, AND V. SIRUTKAITS, UNIVERSITY OF VILNIUS, USSR. WC23 PASSIVE
MODE LOCKING WITH REVERSE SATURABLE AB- SORPTION, DONALD J. HARTER AND
YEHUDA B. BAND,* ALLIED CORPO- RATION. WE DISCUSS A NEW PASSIVE
MODE-LOCKING TECHNIQUE UTILIZING AN ADDITIONAL INTRACAVITY ELEMENT
HAVING INCREASED AB- SORPTION WITH INCREASED INTENSITY. "PRESENT
ADDRESS: BEN-GURION UNIVERSITY OF THE NEGEV, ISRAEL. STEINBECK
LOBBY/JEFFERS PLAZA 7:00 PM-8:30 PM RECEPTION THURSDAY, JUNE 14,1984
STEINBECK FORUM CHEMISTRY II C. B. MOORE, UNIVERSITY OF CALIFORNIA,
BERKELEY, PRESIDER 8:30 AM INVITED PAPER THA1 ENERGY FLOW FROM HIGHLY
EXCITED CH OVERTONES IN BENZENE AND ALKANES, E. L. SIBERT III, J. S.
HUTCHINSON, J. T. HYNES, AND W. P. REINHARDT, UNIVERSITY OF COLORADO.
SIMPLE CLASSICAL AND QUANTAL MODELS OF THE ULTRARAPID (~80-250-FSEC)
FLOW OF ENERGY FROM CH (CD) OVERTONES IN BENZENE (PERDEUTERO- BENZENE)
AND IN TERMINAL ALKYL METHLY GROUPS ARE SHOWN TO AC- COUNT FOR
EXPERIMENTAL VARIATION IN OVERTONE LINEWIDTHS IN- CLUDING ISOTOPIC
EFFECTS. 8:55 AM INVITED PAPER THA2 PUMP-PUMP PICOSECOND LASER
TECHNIQUES AND THE ENERGY DISTRIBUTION DYNAMICS IN MASS SPECTROMETRY, M.
A. EL- SAYED, DAVID GOBELI, JOHN SIMON, AND JENG-JIUN YANG, UNIVER- SITY
OF CALIFORNIA. IN CONVENTIONAL MASS SPECTROMETRY, IT IS NOT POSSIBLE TO
STUDY THE DYNAMICS OF PROCESSES OCCURRING IN THE TIME SCALE BETWEEN
EXCITATION (10~ 15 SEC) AND ION ANALYSIS (10~ 6 SEC). THE USE OF
TWO-COLOR PICOSECOND LASERS OF VARIABLE DELAY TIMES AS SOURCES IN MASS
SPECTROMETRY ENABLES ONE TO PROBE THE DYNAMICS OF ENERGY DISTRIBUTION
AND DISSOCIATION. THIS TECHNIQUE IS DEMONSTRATED AND APPLIED TO A NUMBER
OF ORGANIC MOLECULES FROM WHICH IMPORTANT DYNAMIC PARAMETERS OF THE
MULTIPHOTON IONIZATION DISSOCIATION PROCESS ARE OBTAINED. 9:20 AM
INVITED PAPER THA3 FEMTOSECOND TIME-RESOLVED MULTIPHOTON IONIZATION:
TECHNIQUES AND APPLICATIONS, B. I. GREENE, AT&T BELL LABORA- TORIES.
FEMTOSECOND TIME-RESOLVED MULTIPHOTON IONIZATION IS DEMONSTRATED TO BE A
POWERFUL TECHNIQUE FOR PROBING INTRA- MOLECULAR RELAXATION DYNAMICS IN
VAPOR-PHASE SAMPLES. 9:45 AM INVITED PAPER THA4 INTRAMOLECULAR
ELECTRONIC AND VIBRATIONAL REDISTRIBU- TION AND CHEMICAL TRANSFORMATION
IN ISOLATED LARGE MOLECULES*S, BENZENE, K. YOSHIHARA, M. SUMITANI, D. V.
O'CONNOR, Y. TAKAGI, AND N. NAKASHIMA, INSTITUTE FOR MOLECULAR SCIENCE,
JAPAN. ELECTRONIC AND VIBRATIONAL ENERGY REDISTRIBUTION AND CHEMICAL
TRANSFORMATION IN ISOLATED S, BENZENE WERE INVESTIGATED WITH A
PICOSECOND TUNABLE UV LASER. 10:10 AM-10:30 AM COFFEE BREAK COFFEE
SERVED JEFFERS PLAZA THURSDAY, JUNE 14,1984*CONTINUED CHEMISTRY III C.
B. MOORE, UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 10:30 AM INVITED
PAPER THB1 ULTRAFAST INTRAMOLECULAR REDISTRIBUTION AND ENERGY
DISSIPATION IN SOLUTIONS: THE APPLICATION OF A MOLECULAR THER- MOMETER,
P. O. J. SCHERER, A. SEILMEIER, F. WONDRAZEK, AND W. KAISER, TECHNISCHEN
UNIVERSIFAT MUNCHEN, FRG. RAPID ( 2 PSEC) INTRAMOLECULAR VIBRATIONAL
ENERGY REDISTRIBUTION IS OBSERVED IN LARGE MOLECULES. ENERGY TRANSFER
FROM THE SOLVENT TO THE SOLUTE AND VICE VERSA IS INVESTIGATED. 10:55 AM
INVITED PAPER THB2 NEW PICOSECOND SOURCE IN THE VIBRATIONAL INFRARED, A.
L HARRIS, M. BERG, J. K. BROWN, AND C. B. HARRIS, UNIVERSITY OF
CALIFORNIA, LAWRENCE BERKELEY LABORATORY. HIGH-POWER TUNABLE PICOSECOND
PULSES IN THE VIBRATIONAL INFRARED ARE GENERATED BY STIMULATED
ELECTRONIC RAMAN SHIFTING OF VISIBLE PULSES USING THE OESIUM QS-5D
ATOMIC TRANSITION. 11:20 AM THB3 PICOSECOND TIME-RESOLVED FLUORESCENCE
SPECTRA OF LIQUID CRYSTALS: CYANOOCTYLOXYBIPHENYL, N. TAMAI AND I.
YAMAZAKI, INSTITUTE FOR MOLECULAR SCIENCE, JAPAN, AND H. MASUHARA AND N.
MATAGA, OSAKA UNIVERSITY, JAPAN. AN EXCIMER-STATE FORMATION IN LIQUID
CRYSTALS WAS STUDIED ON THE BASIS OF PICOSECOND TIME-RESOLVED
FLUORESCENCE SPECTRA. 11:35 AM THB4 THRESHOLD IONIZATION IN LIQUIDS, G.
W. ROBINSON, J. LEE, AND R. A. MOORE, TEXAS TECH UNIVERSITY. THRESHOLD
IONIZATION (TL) DIFFERS FROM EXCESS-ENERGY PHOTOIONIZATION IN
SIGNIFICANT WAYS. PICOSECOND EXPERIMENTS ALLOW THE UNIQUE STRUCTURAL
ASPECTS OF TL TO BE EXAMINED. 11:50 AM LUNCH BREAK BIOLOGY II M. KLEIN,
UNIVERSITY OF CALIFORNIA, BERKELEY, PRESIDER 1:30 PM INVITED PAPER THC1
ORIGIN OF CHLOROPLAST FLUORESCENCE DECAY KINETICS: PICOSECOND
FLUORESCENCE OF MUTANTS AND SUBCHLOROPLAST PAR- TICLES OF CHLAMYDOMONAS
REINHARDII AND BARLEY, ROBERT J. GULOTTY, LAURENS METS, RANDALL S.
ALBERTE, AND GRAHAM R. FLEMING, THE UNIVERSITY OF CHICAGO. CHLOROPLAST
FLUORESCENCE DECAYS ARE A COMPLEX AVERAGE OF THE DECAYS OF THE PARTS.
THIS COMPLEXITY IS UNDERSTATED BY THREE COMPONENT FITS THAT SATISFY
STATISTICAL CRITERIA. 1:55 PM THC2 ENERGY TRANSFER IN PHYCOBILISOMES OF
SYNECHOCOCCUS 6301, TOMAS GILLBRO, AKE SANDSTRBM, AND VILLY SUNDSTROM,
UNIVERSITY OF UMES, SWEDEN. DETAILS OF THE RATE OF ENERGY TRANSFER IN
PHYCOBILISOMES OF SYNECHOCOCCUS 6301 AND ITS DEPENDENCE ON THE SIZE AND
STRUCTURE OF THE PHYCOBILISOME ARE REPORTED. THURSDAY, JUNE
14,1984*CONTINUED THURSDAY, JUNE 14,1984*CONTINUED 2:10 PM THC3
PICOSECOND SINGLE-PHOTON FLUORESCENCE SPEC- TROSCOPY OF NUCLEIC ACIDS,
RUDOLF RIGLER, FLORA CLAESENS, AND GOSTA LOMAKKA, KAROLINSKA INSTITUTET,
SWEDEN. LASER-EXCITED TIME-CORRELATED SINGLE-PHOTON FLUORESCENCE
SPECTROSCOPY OF NUCLEIC ACIDS IS PERFORMED WITH 40-PSEC DETECTOR
RESPONSE. 2:25 PM THC4 RELATIONSHIP BETWEEN ENERGY TRANSFER AND CHARGE
SEPARATION IN PHOTOSYNTHESIS: PICOSECOND ABSORPTION DATA, R. V.
DANIELIUS AND A. S. PISKARSKAS, V. KAPSUKAS, VILNIUS UNIVER- SITY, USSR,
AND A. P. RAZJIVIN, M. V. LOMONOSOV MOSCOW UNIVERSITY, USSR. THE FIRST
REPORTED PICOSECOND ABSORPTION DATA ON EXCITATION TRANSFER FROM ANTENNA
TO REACTION CENTERS AND NONLINEAR ANNIHILATION PROCESSES IN INTACT
CHROMATO- PHORES FROM RHODOSPIRILLUM RUBRUM ARE PRESENTED. 2:40 PM THC5
EXCITED-STATE DYNAMICS OF NADH, D. W. BOLDRIDGE, T. H. MORTON, AND G. W.
SCOTT, UNIVERSITY OF CALIFORNIA, RIVERSIDE, AND J. H. CLARK, L A.
PHILIPS, S. P. WEBB, AND S. M. YEH, LAWRENCE BERKELEY LABORATORY AND
UNIVERSITY OF CALIFORNIA, BERKELEY. EXCITED-STATE DYNAMICS AND ENERGY
TRANSFER IN NADH ARE DISCUSSED. EMISSION AND TRANSIENT ABSORPTION
KINETICS OF EXCITED-STATE NADH IN WATER GIVE A 50% QUANTUM YIELD OF
ELEC- TRON EJECTION IN 40 PSEC. 2:55 PM-3:15 PM COFFEE BREAK COFFEE
SERVED JEFFERS PLAZA PHYSICS III C. FLYTZANIS, ECOLE POLYTECHNIQUE,
PRESIDER 3:15 PM INVITED PAPER THD1 COLLIDING-PULSE FEMTOSECOND LASER
AND APPLICATIONS TO MEASUREMENTS OF OPTICAL PARAMETERS, J.-C . DIELS,
NORTH TEXAS STATE UNIVERSITY. A LINEAR MODE-LOCKED LASER TERMINATED BY
AN ANTIRESONANT RING WILL BE DESCRIBED AS WELL AS APPLICA- TIONS OF
FEMTOSECONDS SPECTROSCOPY TO MEASUREMENTS OF THE DISPERSIVE PROPERTIES
OF OPTICAL MATERIALS AND COMPONENTS. 3:40 PM THD2 ANALYSIS OF COHERENCE
EFFECTS IN PUMP-PROBE MEA- SUREMENTS, S. L. PALFREY AND T. F. HEINZ, IBM
THOMAS J. WAT- SON RESEARCH CENTER, AND K. B. EISENTHAL, COLUMBIA
UNIVERS- ITY. WE SHOW THAT THE COHERENT ARTIFACT EXISTS IN PUMP-PROBE
MEASUREMENTS EVEN FOR COLLINEAR, COPROPAGATING BEAMS, AND WE SUGGEST A
METHOD FOR ELIMINATING ITS INFLUENCE. 3:55 PM THD3 COLLINEAR MULTIPASS
AMPLIFIER, R. L FORK AND M. C. DOWNER, AT&T BELL LABORATORIES, AND M.
ISLAM, MASSACHUSETTS INSTITUTE OF TECHNOLOGY. WE DESCRIBE A NOVEL
AMPLIFIER THAT USES MULTIPLE COLLINEAR PASSES TO PROVIDE EFFICIENT
AMPLIFICA- TION OF FEMTOSECOND OPTICAL PULSES AT HIGH REPETITION RATE.
4:10 PM THD4 TIME-DOMAIN COHERENT ACTIVE RAMAN SPECTROSCOPY OF
FREE-NITROGEN JET, S. A. AKHMANOV, N. I. KOROTEEV, S. A. MAGNIT- SKII,
V. B. MOROZOV, A. P. TARASSEVICH, V. G. TUNKIN, AND I. L SHUMAY,* MOSCOW
STATE UNIVERSITY, USSR. TH E DEPHASING KINETICS OF THE INHOMOGENEOUSLY
BROADENED Q BRANCH OF NITROGEN MOLECULES COOLED IN A SUPERSONIC JET IS
STUDIED BY PICOSECOND TIME-DOMAIN CARS TECHNIQUE. THE ROTATIONAL
TEMPERATURE AND COLLISIONAL DEPHASING TIME ARE ESTIMATED FROM GENERAL
DECAY RATE AND QUANTUM BEATS OF ROTATIONAL COMPONENTS. *ON SABBATICAL
LEAVE AT MASSACHUSETTS INSTITUTE OF TECHNOLOGY. 4:25 PM THD5 QUANTUM
FLUCTUATIONS IN PICOSECOND TRANSIENT STIMULATED RAMAN SCATTERING, N.
FABRICIUS, K. NATTERMANN, AND D. VON DER LINDE, UNIVERSIT'A'T-GHS-ESSEN,
FRG. THE STATISTICAL DISTRIBUTION OF THE STOKES ENERGY IN HYDROGEN IS
MEASTIRED. FLUCTUATIONS OBEYING AN EXPONENTIAL LAW ARE OBSERVED. THEY
ARE CAUSED BY INITIAL-STATE QUANTUM UNCERTAIN- TIES. 4:40 PM THD6
HOLOGRAPHIC TRANSIENT GRATING MEASUREMENTS OF EX- CITON TRANSPORT, M. D.
FAYER, STANFORD UNIVERSITY. PICOSECOND HOLOGRAPHIC GRATING EXPERIMENTS
ARE USED TO MEASURE THE TEMPERATURE DEPENDENCE OF SINGLET EXCITON
TRANSPORT IN AN- THRACENE CRYSTALS. THE METHOD PERMITS A DIRECT
MEASUREMENT OF THE TRANSPORT BY INTRODUCING AN ACCURATE DISTANCE SCALE
INTO THE SAMPLE. 4:55 PM BREAK STEINBECK LOBBY 6:00 PM-7:30 PM POSTER
SESSION III REFRESHMENTS SERVED JEFFERS PLAZA THE1 PRIMARY PROCESS IN
THE PHOTOCYCLES OF LOWPH BACTERI- ORHODOPSIN, TAKAYOSHI KOBAYASHI,
HIROYUKI OHTANI, JUN-ICHI IWAI, AND HISAO UCHIKI, UNIVERSITY OF TOKYO,
JAPAN, AND AKIRA IKEGAMI, INSTITUTE OF PHYSICAL AND CHEMICAL RESEARCH,
JAPAN. THE EFFECT OF PH ON THE PHOTOCYCLE OF BACTERIORHODOPSIN IN THE
PICOSECOND TIME DOMAIN WAS MADE CLEAR WITH THE AID OF
PICOSECOND-SPECTROSCOPY APPARATUS. THE2 SUBPICOSECOND AND PICOSECOND
TIME-RESOLVED LASER PHOTOIONIZATION OF PHENOTHIAZINE IN MICELLAR MODELS,
Y. GAUDUEL, A. MIGUS, J. L. MARTIN, J. M. LEMAITRE, AND A. ANTONETTI,
ECOLE POLYTECHNIQUE, FRANCE. SUBPICOSECOND LASER PHOTOLYSIS OF
PHENOTHIAZINE IN MICELLES LEADS TO ELECTRON SOLVATION WITH A TIME
CONSTANT OF 500 FSEC IN SLS MICELLES AND LESS THAN 100 FSEC IN REVERSED
MICELLES. THURSDAY, JUNE 14,1984-CONTINUED THURSDAY, JUNE
14,1984*CONTINUED THE3 LASER PICOSECOND DIFFERENCE SPECTROPHOTOMETRY:
THE PROBLEMS OF EXCITATION DYNAMICS IN RHODOSPIRILLUM RUBRUM
CHROMATOPHORES, R. V. DANIELIUS, VILNIUS V. KAPSUKAS UNIVER- SITY, USSR,
AND A. P. RAZJIVIN AND R. I. ROTOMSKIS, M. V. LOMONOSOV UNIVERSITY,
USSR. THE EXCITATION DECAY CURVES IN THE MINOR SPECTRAL FORM OF
LIGHT-HARVESTING ANTENNA ARE ALMOST INDEPENDENT OF THE REACTION CENTER
REDOX STATE IN RH. RUBRUM CHROMATOPHORES. THE4 PICOSECOND SPECTROSCOPY
ON THE PRIMARY PROCESS IN THE PHOTOCONVERSION OF PROTOCHLOROPHYLLIDE TO
CHIOROPHYILIDE A, TAKAYOSHI KOBAYASHI AND JUN-ICHI IWAI, UNIVERSITY OF
TOKYO, JAPAN, AND MASAHIKO IKEGAMI AND YORINAO INOUE, INSTITUTE OF
PHYSICAL AND CHEMICAL RESEARCH, JAPAN. THE TRANSIENT AB- SORPTION CHANGE
IN THE PICOSECOND TO THE SEVERAL-TENS-OF- NANOSECONDS REGIME WAS STUDIED
FOR A SOLUTION OF EXTRACTED PHOTOCHLOROPHYLLIDE HOLOCHROME OF SQUASH
PLANTS. THE5 ENERGY TRANSFER IN PHOTOSYNTHESIS, S. J. BERENS, J.
SCHEELE, W. L. BUTLER, AND D. MAGDE, UNIVERSITY OF CALIFORNIA, SAN
DIEGO. THE FLUORESCENCE DECAY KINETICS OF SPINACH CHLOROPLASTS CAN BE
UNDERSTOOD IN TERMS OF A HETEROGENEOUS BIPARTITE MODEL, WHICH
DISTINGUISHES TWO DIFFERENT TYPES OF PSII UNITS. THE6 EXCITATION ENERGY
TRANSFER IN PHYCOBILIN-CHLOROPHYLL A SYSTEM OF ALGAL INTACT CELLS, I.
YAMAZAKI, N. TAMAI, AND T. YAMAZAKI, INSTITUTE FOR MOLECULAR SCIENCE,
JAPAN, AND M. MIMURO AND Y. FUJITA, NATIONAL INSTITUTE FOR BASIC
BIOLOGY, JAPAN. PICOSECOND TIME-RESOLVED FLUORESCENCE SPECTRA WERE
MEASURED FOR THE LIGHT-HARVESTING PIGMENT SYSTEM OF ALGAL IN- TACT
CELLS. THE MECHANISM OF ENERGY TRANSFER IS DISCUSSED. TH E7
RADIATIONLESS PROCESSES IN AGGREGATED CHROMOPHORES OF THE DYE
DIETHYLTHIADICARBOCYANINE IODIDE IN AQUEOUS SOLU- TION, VILLY SUNDSTRB'M
AND TOMAS BILLBRO, UNIVERSITY OF UMEA, SWEDEN. ON AGGREGATION THE
EXCITED-STATE LIFETIME OF DIETHYL- THIADICARBOCYANINE IODIDE IS FOUND TO
BECOME DRASTICALLY SHORTENED. TWO LIFETIMES INDEPENDENT OF TEMPERATURE
ARE AT- TRIBUTED TO DIMERS AND TRIMERS, RESPECTIVELY. THE8 ENERGY
DYNAMICS IN A SMALL SUBUNIT OF A PHYCOBILIN STUDIED BY PICOSECOND
FLUORESCENCE KINETICS, A. J. DAGEN AND R. R. ALFANO, THE CITY COLLEGE OF
NEW YORK, B. A. ZILINSKAS, RUTGERS UNIVERSITY, AND C. E. SWENBERG,
AFRRI. THE FLUOR- ESCENCE DYNAMICS OF THE A SUBUNIT OF PHYCOERYTHRIN
FROM NOSTOC SP WERE MEASURED. THE DECAY PROFILES WERE FIT TO A MODEL
WHERE BOTH CHROMOPHORES ABSORB AND FLUORESCE. EX- CITON ANNIHILATION WAS
SHOWN TO BE ABSENT BY ANALYSIS OF TRANSMISSION AND QUANTUM-YIELD DATA.
THE9 PICOSECOND TIME-RESOLVED FLUORESCENCE SPECTRA OF HEMATOPORPHYRIN
DERIVATIVE AND ITS RELATED PORPHYRINS, MIKIO YAMASHITA, SHUNSUKE
KOBAYASHI, AND TAKUZO SATO, ELECTRO- TECHNICAL LABORATORY, JAPAN,
MASAHID A NOMURA, TOHOKU UNIVERSITY, JAPAN, AND KATSUO AIZAWA, TOKYO
MEDICAL COLLEGE, JAPAN. PICOSECOND TIME-DEPENDENT FLUORESCENCE SPECTRA
FOR HEMATOPORPHYRIN DERIVATIVE AND PHOTOFRIN II SOLUTIONS ARE MEASURED
USING TWO-DIMENSIONAL SYNCHROSCAN STREAK CAMERAS, AND A NEW EMISSION
BAND IS FOUND. THE10 EXCITED-STATE PROTON-TRANSFER REACTIONS IN
1-NAPHTHOL, S. P. WEBB, SHEILA W. YEH, LAURA A. PHILIPS, M. A. TOLBERT,
AND J. H. CLARK, LAWRENCE BERKELEY LABORATORY AND UNIVERSITY OF
CALIFORNIA, BERKELEY. PICOSECOND TIME-RESOLVED EMISSION SPECTROSCOPY IS
USED TO PROBE THE KINETICS OF EXCITED-STATE PROTON-TRANSFER REACTIONS OF
1-NAPHTHOL IN AQUEOUS SOLUTION. THE11 EXCITED-STATE SOLVATION DYNAMICS
IN 4-AMINOPHTHALI- MIDE, SHEILA W. YEH, LAURA A. PHILIPS, S. P. WEBB, L
F. BUHSE, AND J. H. CLARK, LAWRENCE BERKELEY LABORATORY AND UNIVERSITY
OF CALIFORNIA, BERKELEY. SOLVATION DYNAMICS OF ELECTRONICALLY EXCITED
4-AMINOPHTHALIMIDE ARE INVESTIGATED WITH PICOSECOND TIME-RESOLVED
EMISSION SPECTROSCOPY. PREDICTIONS OF A TWO- STATE MODEL AND A CONTINUUM
SOLVATION MODEL ARE DISCUSSED. THE12 HIGH-YIELD PICOSECOND PHOTON ECHOES
BY PHOTO- CHEMICAL HOLE BURNING, R. KAARLI, A. REBANE, AND P. SAARI,
ACADEMY OF SCIENCES OF THE ESTONIAN SSR, USSR. A NEW TYPE OF STIMULATED
PHOTON ECHO WITH ~ 0.5 YIELD AND ITS APPLICATIONS FOR DEPHASING TIME
MEASUREMENT, TIME-DOMAIN HOLOGRAPHY, AND WAVE CONJUGATION ARE REPORTED.
THE13 THE PYRAZINE MYSTERY: A RESOLUTION, ANDRAS LORINCZ,* FRANK A.
NOVAK, DUANE D. SMITH.T AND STUART A. RICE, THE UNIVERSITY OF CHICAGO.
WE REPORT NEW MEASUREMENTS OF THE ROTATIONAL-STATE DEPENDENCE OF THE
INITIAL FLUORESCENCE DECAY OF PYRAZINE. THE APPARENTLY INCONSISTENT DATA
FROM SEVERAL SOURCES ARE RECONCILED. 'PERMANENT ADDRESS: HUNGARIAN
ACADEMY OF SCIENCES, HUNGARY. TPRESENT ADDRESS: PURDUE UNIVERSITY. THE14
PICOSECOND LASER STUDIES OF PHOTOINDUCED ELECTRON TRANSFER IN
PORPHYRIN-QUINONE AND RELATED MODEL SYSTEMS, NOBORU MATAGA, AKIYA KAREN,
TADASHI OKADA, YOSHITERU SAKATA, AND SOICHI MISUMI, OSAKA UNIVERSITY,
JAPAN. PICO- SECOND LASER STUDIES OF PHOTOINDUCED ELECTRON TRANSFER AND
ITS ENVIRONMENTAL EFFECTS IN PORPHYRIN-QUINONE MODEL SYSTEMS AND TYPICAL
EXCIPLEXES HAVE REVEALED THE CHARGE-SEPARATION MECHANISM. THE15
PICOSECOND TIME-RESOLVED SPECTROSCOPY OF ELECTRON- ICALLY EXCITED
TRIS(2,2'-BIPYRIDINE) RUTHENIUM(LL) DICHLORIDE, LAURA A. PHILIPS, W. T.
BROWN, S. P. WEBB, SHEILA W. YEH, AND J. H. CLARK, LAWRENCE BERKELEY
LABORATORY AN D UNIVERSITY OF CALIFORNIA, BERKELEY. THE DYNAMICS OF
ELECTRONICALLY EXCITED TRIS(2,2'-BIPYRIDINE) RUTHENIUM(LL) DICHLORIDE
ARE PROBED WITH PICOSECOND TIME-RESOLVED RESONANCE RAMAN AND EMISSION
MEASUREMENTS. THE16 EXCITED-STATE PROTON TRANSFER REACTIONS OF FLAVONOLS
IN ALCOHOLIC SOLVENTS, KEE-JU CHOI, THE STANDARD OIL COMPANY (OHIO), AND
BRUCE P. BOCZER AND MICHAEL R. TOPP, UNIVERSITY OF PENNSYLVANIA. THE
TIME-RESOLVED FLUORESCENCE STUDIES OF FLAVONOLS SHOW THAT THERE ARE TWO
DIFFERENT GROUND-STATE CON- FORMATIONS OF FLAVONOLS IN ALCOHOLIC
SOLVENTS, AND BOTH SPECIES CONTRIBUTE TO THE FORMATION OF THE TAUTOMER
THROUGH DIFFERENT CHANNELS. FRIDAY, JUNE 15,1984*CONTINUED * GENERATION
AND MEASUREMENT III E. P. IPPEN, MASSACHUSETTS INSTITUTE OF TECHNOLOGY,
PRESIDER 12:10 PM FC1 HIGH-AVERAGE-POWER MODE-LOCKED CO:MGF 2 LASER, B.
C. JOHNSON, M. ROSENBLUH,* P. F. MOULTON, AND A. MOORADIAN, MIT LINCOLN
LABORATORY. TUNABLE, ACTIVELY MODE-LOCKED CO:MGF 2 LASERS HAVE PRODUCED
PULSES AS SHORT AS 34 PSEC IN THE 1.6- TO 2.0-/TM REGION AND AVERAGE
OUTPUT POWERS OF 2 W. 'PERMANENT ADDRESS: BAR HAN UNIVERSITY, ISRAEL.
12:25 PM FC2 HIGH-POWER PICOSECOND PULSES IN THE INFRARED, P. B. CORKUM,
NATIONAL RESEARCH COUNCIL OF CANADA. CO 2 LASERS CAN EFFICIENTLY AMPLIFY
10-/TM PULSES AS SHORT AS 2 PSEC. SECOND-HARMONIC CONVERSION PROVIDES A
TUNABLE 5-^M SOURCE. SINGLE PULSES CONTAINING ~ 1 MJ CAN BE OBTAINED.
12:40 PM * FC3 OBSERVATION OF THE OIR PULSE, JOSHUA E. ROTHENBERG, D.
GRISCHKOWSKY, AND A. C. BALANT, IBM THOMAS J. WATSON RESEARCH CENTER. WE
HAVE MEASURED TO 0.7-PSEC RESOLUTION THE RESHAPING OF A SMALL-AREA
7-PSEC PULSE TO A OIR PULSE OWING TO ITS RESONANT PROPAGATION THROUGH AN
OPTICALLY THICK SODIUM CELL. 12:55 PM FC4 PICOSECOND TWO-COLOR PHOTON
ECHOES IN DOPED MOLECULAR SOLIDS, DOUWE A. WIERSMA, D. P. WEITEKAMP,*
AND KOOS DUPPEN, UNIVERSITY OF GRONINGEN, THE NETHERLANDS. TWO-
DIMENSIONAL PICOSECOND PHOTON-ECHO SPECTROSCOPY IS USED TO STUDY
VIBRATIONAL DEACTIVATION IN DOPED MOLECULAR SOLIDS. EVIDENCE FOR
INTERMEDIATE LEVELS IN THE RELAXATION PATHWAY IS PRESENTED. *PRESENT
ADDRESS: UNIVERSITY OF CALIFORNIA, BERKELEY. 1:10 PM FC5 SUBPICOSECOND
ACCUMULATED PHOTON ECHOES WITH IN- COHERENT LIGHT IN ND*-DOPED SILICATE
GLASS, H . NAKATSUKA, S. ASAKA, M. FUJIWARA, AND M. MATSUOKA, KYOTO
UNIVERSITY, JAPAN. ACCUMULATED PHOTON ECHOES WERE OBSERVED IN ND** GLASS
WITH AN INCOHERENT EXCITATION LIGHT. A TIME RESOLUTION OF 220 FSEC WAS
OBTAINED WITHOUT USING ULTRA-SHORT PULSES. 1:25 PM CLOSING REMARKS |
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| spelling | International Conference on Ultrafast Phenomena 4 1984 Monterey, Calif. Verfasser (DE-588)5231040-1 aut A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California sponsored by Optical Society of America and Air Force Office of Scientific Research Ultrafast phenomena Topical Meeting on ultrafast phenomena [Washington, DC] Optical Society of America 1984 Getr. Zählung [ca. 600 S.] graph. Darst. 29 cm txt rdacontent n rdamedia nc rdacarrier Technical digest 1984,9 Optik (DE-588)4043650-0 gnd rswk-swf Ultraschneller Prozess (DE-588)4186732-4 gnd rswk-swf (DE-588)1071861417 Konferenzschrift 1984 Monterey Calif. gnd-content Optik (DE-588)4043650-0 s Ultraschneller Prozess (DE-588)4186732-4 s DE-604 GBV Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016721826&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California Optik (DE-588)4043650-0 gnd Ultraschneller Prozess (DE-588)4186732-4 gnd |
| subject_GND | (DE-588)4043650-0 (DE-588)4186732-4 (DE-588)1071861417 |
| title | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |
| title_alt | Ultrafast phenomena Topical Meeting on ultrafast phenomena |
| title_auth | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |
| title_exact_search | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |
| title_exact_search_txtP | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |
| title_full | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California sponsored by Optical Society of America and Air Force Office of Scientific Research |
| title_fullStr | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California sponsored by Optical Society of America and Air Force Office of Scientific Research |
| title_full_unstemmed | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California sponsored by Optical Society of America and Air Force Office of Scientific Research |
| title_short | A digest of technical papers presented at the Topical Meeting on Ultrafast Phenomena, June 12 - 15, 1984, Monterey, California |
| title_sort | a digest of technical papers presented at the topical meeting on ultrafast phenomena june 12 15 1984 monterey california |
| topic | Optik (DE-588)4043650-0 gnd Ultraschneller Prozess (DE-588)4186732-4 gnd |
| topic_facet | Optik Ultraschneller Prozess Konferenzschrift 1984 Monterey Calif. |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016721826&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT internationalconferenceonultrafastphenomenamontereycalif adigestoftechnicalpaperspresentedatthetopicalmeetingonultrafastphenomenajune12151984montereycalifornia AT internationalconferenceonultrafastphenomenamontereycalif ultrafastphenomena AT internationalconferenceonultrafastphenomenamontereycalif topicalmeetingonultrafastphenomena |