Characteristics and performance of a novel free-surface material for volume holographic recording:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2014
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XIV, 192 S. Ill., graph. Darst. |
Internformat
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| 245 | 1 | 0 | |a Characteristics and performance of a novel free-surface material for volume holographic recording |c vorgelegt von Tina Sabel |
| 246 | 1 | |a Characteristics and performance of a novel free-surface material for volume holographic recording | |
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| 502 | |a Berlin, Techn. Univ., Diss., 2013 | ||
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Datensatz im Suchindex
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| adam_text | CONTENTS
INTRODUCTION XI
I VOLUME HOLOGRAPHY 1
THE VOLUME HOLOGRAPHIC PRINCIPLE 2
1 HOLOGRAM FORMATION 3
OUTLINE 3
1.1 HOLOGRAM RECORDING 3
1.2 GRATING TYPES 5
1.2.1 CLASSIFICATION 5
1.2.2 DIFFRACTION REGIMES AND THE SELECTIVITY 5
1.2.3 GEOMETRY AND THE ANGULAR RESPONSE 6
2 VOLUME HOLOGRAPHIC MATERIALS 8
FROM THEORY TO PRACTICE 8
2.1 MATERIAL-RELATED REQUIREMENTS 8
2.1.1 SENSITIVITY 8
2.1.2 RESOLUTION 9
2.1.3 TRANSPARENCY 10
2.1.4 STABILITY 10
2.2 MATERIAL CLASSES 11
2.2.1 FROM CLASSICAL PHOTOGRAPHIC EMULSION TO CUSTOMIZED
COMPOSITIONS 11
2.2.2 POLYMERS 11
2.2.3 PHOTOREFRACTIVE MEDIA 13
IV
HTTP://D-NB.INFO/1057015741
CONTENTS
V
3 GRATING FORMATION MECHANISM 14
INTERPLAY OF POLYMERIZATION AND DIFFUSION 14
3.1 THE DRIVING FORCE 14
3.2 THE PDD MODEL 15
3.3 THE R PARAMETER 16
3.3.1 LARGE R 17
3.3.2 INTERMEDIATE CASE 17
3.3.3 SMALL R 17
3.3.4 ILLUSTRATION 17
4 ANALYSIS OF DIFFRACTIVE PROPERTIES 19
MERITS AND LIMITATIONS OF THE COUPLED WAVE APPROACH 19
4.1 THE COUPLED WAVE EQUATIONS 20
4.2 POWER FLOW 20
4.3 BRAGG SELECTIVITY 21
4.3.1 OFT-BRAGG BEHAVIOR 21
4.3.2 ANGLE-WAVELENGTH-COUPLING 22
4.3.3 BRAGG ANGLE DETUNING - OPTICAL SHRINKAGE .... 22
4.4 THE COUPLING STRENGTH 23
4.4.1 ILLUSTRATION 23
4.4.2 UNDER- AND OVER-COUPLING 23
5 VOLUME HOLOGRAPHIC APPLICATIONS 25
OVERVIEW 25
5.1 BEAM CONTROL 25
5.2 PHOTONIC CRYSTALS 26
5.3 INTEGRATED OPTICS 26
5.4 DISPLAY TECHNOLOGIES 27
5.5 SECURITY TECHNOLOGIES 28
5.6 HOLOGRAPHIC INTERFEROMETRY 29
5.7 DATA STORAGE 29
5.8 BIOMEDICAL APPLICATIONS 30
II A FREE-SURFACE HOST-GUEST SYSTEM 31
INTRODUCTION 32
VI
CONTENTS
6 COMPONENTS 34
GENERAL COMPOSITIONAL REQUIREMENTS 34
6.1 THE HOST-GUEST SYSTEM 35
6.1.1 EPOXY-BASED COMPOSITION 35
6.1.2 THE HOST: SU-8 35
6.1.3 THE GUEST SYSTEM 37
6.1.4 SENSITIZATION 38
6.1.5 CROSSLINKING 39
7 SAMPLE FABRICATION AND PROCESSING 40
STANDARDS 40
7.1 SAMPLE FABRICATION 40
7.1.1 SPINNING 40
7.1.2 PREBAKE 41
7.2 EXPOSURE 41
7.3 POST EXPOSURE PROCESSING 41
7.3.1 POSTBAKE 41
7.3.2 FLOOD EXPOSURE 42
7.3.3 HARDBAKE 42
8 LAYER THICKNESS 43
THE CHALLENGE 43
8.1 IMPACT OF THE LAYER THICKNESS 43
8.2 ADJUSTMENT WITH SPIN COATING 44
8.3 STABILITY 45
8.4 THICKNESS MEASUREMENT 45
9 OPTICAL PROPERTIES 47
OUTLINE 47
9.1 REFRACTION 47
9.1.1 DISPERSION OF THE HOST SYSTEM 47
9.1.2 REFRACTION OF THE HOST-GUEST MIXTURE 48
9.1.3 ACHIEVABLE INDEX CONTRAST 49
9.2 SPECTRAL OPTICAL ATTENUATION 52
10 DARK STORAGE 55
RELEVANCE 55
10.1 INVESTIGATIONS 56
10.2 RESULTS 56
CONTENTS
VII
III OPTICAL STRUCTURING AND CHARACTERIZATION TECH
NIQUES 58
11 HOLOGRAPHIC EXPOSURE 59
SIMPLE AND MORE COMPLEX METHODS 59
11.1 GENERAL SYSTEM REQUIREMENTS 59
11.2 SETUP 60
12 IN-SITU INVESTIGATIONS 62
SCOPE OF THE STUDY 62
12.1 IMPLEMENTATION 62
12.2 OUTPUT AND DERIVED INFORMATION 63
12.2.1 OVERVIEW 63
12.2.2 BRAGG-ANGLE SHIFT 64
13 ROTATION-SCANS 66
PURPOSE OF THE INVESTIGATIONS 66
13.1 SETUP 66
13.2 DERIVED INFORMATION 67
13.2.1 GRATING PERIOD 67
13.2.2 VOLUME SHRINKAGE 67
13.2.3 LAYER THICKNESS AND REFRACTIVE INDEX CONTRAST . . 68
13.2.4 HIGHER DIFFRACTION ORDERS - THE REFRACTIVE INDEX
PROFILE 68
13.3 ACCURACY 68
13.4 IMPACT OF THE PROBE BEAM DIAMETER 69
14 LATERAL-SCANS 72
EXTENSION OF THE METHOD SPECTRUM 72
14.1 IMPLEMENTATION 72
14.2 ILLUSTRATION 73
14.3 OUTPUT AND DERIVED INFORMATION 75
14.4 ACCURACY ESTIMATION 75
15 MICROSCOPIC IMAGING 77
THE CHALLENGE 77
15.1 REFLECTION GRATINGS - IMAGING IN SECTIONAL VIEW 77
15.2 SPATIAL ANALYSIS 78
VIII
CONTENTS
IV KINETICS 79
INTRODUCTION 80
16 DYNAMICS OF GRATING FORMATION 81
OUTLINE 81
16.1 TWO-STEP GROWTH 81
16.2 EXPLORING THE GROWING BEHAVIOR 83
16.2.1 UNCOVER THE UNDERLYING CAUSE 83
16.2.2 EXCLUDING OVERMODULATION 83
16.3 MODELING 83
16.3.1 INITIAL ASSUMPTIONS 83
16.3.2 THE TRANSITION HYPOTHESIS 84
16.3.3 MODEL IMPROVEMENT 86
16.4 GRATING PHASE SHIFT 89
16.4.1 MOTIVATION AND EXPECTATIONS 89
16.4.2 CONFIRMATION OF THE AN-TRANSITION THEORY .... 89
16.4.3 DEPENDENCE ON THE RECORDING INTENSITY 89
16.5 EXTERNAL INFLUENCING FACTORS 91
16.5.1 MOTIVATION AND EXPECTATIONS 91
16.5.2 IMPACT OF THE GRATING PERIOD 92
16.5.3 IMPACT OF THE MATERIAL S VISCOSITY 93
16.5.4 SCALING AND INCOMPLETE NULL 94
16.5.5 IMPACT OF PRE-EXPOSURE 96
16.6 CONCLUSION 97
17 THE UNDOPED SYSTEM: SU-8 99
MOTIVATION 99
17.1 EXPECTATIONS 99
17.2 RESULTS . 100
17.2.1 THE IMPACT OF PRE-EXPOSURE 101
17.2.2 IMPACT OF THE EXPOSURE DURATION 103
17.2.3 THE TIME RESPONSE 104
17.2.4 THE FIRST GROWTH STEP 105
17.2.5 THE IMPACT OF UV FIXATION 106
17.3 CONCLUSIONS 108
18 TIME RESOLVED VOLUME CHANGE 110
MOTIVATION AND OUTLINE 110
18.1 EXPECTATIONS 112
18.2 RESULTS 112
CONTENTS
IX
18.2.1 GENERAL OVERVIEW 112
18.2.2 TIME INVARIANCE FOR LOW VISCOSITY AND SHORT EXPO
SURE DURATION 113
18.2.3 SPECIAL CHARACTERISTIC FOR HIGH VISCOSITY OR LONGER
EXPOSURE DURATION 113
18.2.4 TRANSITION OF OPTICAL SHRINKAGE 116
18.2.5 IMPACT OF EXPOSURE DURATION 117
18.3 CONCLUSIONS 119
V HOLOGRAM CHARACTERIZATION 120
THE CHALLENGE 121
19 ANGULAR RESPONSE 122
OUTLINE 122
19.1 ANGULARLY RESOLVED DIFFRACTION EFFICIENCY 122
19.2 DERIVED LAYER THICKNESS 123
19.2.1 IMPACT OF THE LAYER THICKNESS ON THE ANGULAR RE
SPONSE 123
19.2.2 EXTERNAL INFLUENCING FACTORS 125
19.3 DERIVED REFRACTIVE INDEX CONTRAST 128
19.3.1 IMPACT OF THE REFRACTIVE INDEX CONTRAST ON THE
ANGULAR RESPONSE 128
19.3.2 EXTERNAL INFLUENCING FACTORS 128
19.4 REFRACTIVE INDEX PROFILE 131
19.4.1 BASIC CONCEPTS AND FUNDAMENTAL RELATIONSHIPS . . 131
19.4.2 SATURATION EFFECTS 131
19.5 SPECIAL FEATURES OF GAUSSIAN EXPOSURE 132
19.5.1 PRINCIPLE 132
19.5.2 ILLUSTRATION 133
20 INTENSITY RESPONSE 135
APPROACH 135
20.1 MATERIAL RESPONSE AND PERFORMANCE 135
20.1.1 PHOTORESPONSE 135
20.1.2 IMPACT OF THE EXPOSURE DURATION 136
20.1.3 ENERGETIC SENSITIVITY 137
20.2 EXTERNAL INFLUENCE - PRE-EXPOSURE 141
X
CONTENTS
21 SPATIALLY RESOLVED VOLUME CHANGES 144
MOTIVATION 144
21.1 IMPLEMENTATION 144
21.2 EXPECTATIONS 145
21.3 RESULTS 146
21.3.1 LOCAL GRATING CONSTANT 146
21.3.2 LOCAL GRATING SLANT 148
21.4 CONCLUSIONS 153
21.5 PERSPECTIVES - POTENTIAL EXTENSIONS 153
21.5.1 THE FREE SURFACE 153
21.5.2 TEMPORAL DEVELOPMENT 153
22 SPATIAL FREQUENCY RESPONSE 155
THE MATERIAL RESOLUTION 155
22.1 DEMANDS AND EXPECTATIONS 155
22.2 EXPERIMENTAL RESULTS 157
22.2.1 SPECTRAL WIDTH OF THE MATERIAL RESPONSE 157
22.2.2 THE OPTIMUM SPATIAL FREQUENCY RESPONSE 157
22.2.3 THE MAXIMUM SPATIAL FREQUENCY RESPONSE .... 159
23 SPECIAL EXPOSURE GEOMETRIES 162
MUTUAL CONTEXT 162
23.1 REFLECTION-TYPE HOLOGRAPHIC GRATINGS 162
23.2 PARASITE GRATINGS 163
23.2.1 ORIGIN 163
23.2.2 EXPLORATION 163
23.3 THREE-DIMENSIONAL HOLOGRAPHIC STRUCTURING 164
VI SUMMARY AND ANNEX 166
SUMMARY 167
REFERENCES 170
FREQUENTLY USED SYMBOLS 186
LIST OF OWN PUBLICATIONS AND CONFERENCE PRESENTATIONS 190
ACKNOWLEDGMENTS 192
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| spelling | Sabel-Grau, Tina 1985- Verfasser (DE-588)1051889189 aut Characteristics and performance of a novel free-surface material for volume holographic recording vorgelegt von Tina Sabel Characteristics and performance of a novel free-surface material for volume holographic recording 2014 XIV, 192 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Berlin, Techn. Univ., Diss., 2013 Holographisches Gitter (DE-588)4249866-1 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Holographisches Gitter (DE-588)4249866-1 s DE-604 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027337619&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Sabel-Grau, Tina 1985- Characteristics and performance of a novel free-surface material for volume holographic recording Holographisches Gitter (DE-588)4249866-1 gnd |
| subject_GND | (DE-588)4249866-1 (DE-588)4113937-9 |
| title | Characteristics and performance of a novel free-surface material for volume holographic recording |
| title_alt | Characteristics and performance of a novel free-surface material for volume holographic recording |
| title_auth | Characteristics and performance of a novel free-surface material for volume holographic recording |
| title_exact_search | Characteristics and performance of a novel free-surface material for volume holographic recording |
| title_full | Characteristics and performance of a novel free-surface material for volume holographic recording vorgelegt von Tina Sabel |
| title_fullStr | Characteristics and performance of a novel free-surface material for volume holographic recording vorgelegt von Tina Sabel |
| title_full_unstemmed | Characteristics and performance of a novel free-surface material for volume holographic recording vorgelegt von Tina Sabel |
| title_short | Characteristics and performance of a novel free-surface material for volume holographic recording |
| title_sort | characteristics and performance of a novel free surface material for volume holographic recording |
| topic | Holographisches Gitter (DE-588)4249866-1 gnd |
| topic_facet | Holographisches Gitter Hochschulschrift |
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