Optical properties of photonic crystals - New Jersey Institute of ...

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10 future. They may provide a novel reflector technology that can be easily scaled in size to fit almost all intended applications. Take, for example, the third structure shown below. A periodic pattern is etched onto each wafer. The wafers are then stacked vertically, with each consecutive layer being rotated with respect to the previous one. This results in a woodpile like structure. Figure 1.6 Structure of the lattice for Inverted Opal , Close Packed Opal , Woodpile System s '` 1.2 Thesis Content The main objective of this thesis is to explore the numerous possibilities that could arise out of the phenomena of light trapping between the layers in a photonic crystal. By working on the 3D photonic crystal, it can be brought into the wavelength regime, where most optoelectronic devices operate, i.e. 1.3 to 1.5 1.1m. A variety of exciting photonic devices, including low-loss waveguide sharp bends, high-Q resonant cavities and singlemode LEDs can now be made from 3D photonic crystals. Using photonic band gap materials, one can fabricate dielectric waveguides and high Q-resonators for solid state laser devices. Also, light trapping could have important implications for quantum optics and quantum-optical devices like the modification of blackbody radiation, the
11 localization of light to a fraction of a cubic length, etc. The main objective is the search for a structure that will display the much needed characteristics in the infrared wavelength range, so that such a material can be used to construct lasers in that particular range. In doing so, the work presented in this thesis will focus on the analysis of certain samples of photonic crystals. Transmissivity measurements, in particular, will be analyzed towards the end of this thesis. To realize most of the applications, it is crucial to have a photonic-band-gap crystal lattice that can be easily and reproducibly fabricated.
Page 1 and 2: Copyright Warning & Restrictions Th
Page 3 and 4: ABSTRACT BAND -GAP CHARACTERISTICS
Page 6 and 7: APPROVAL PAGE OPTICAL PROPERTIES OF
Page 8 and 9: This Thesis is dedicated to my fami
Page 10 and 11: TABLE OF CONTENTS Chapter Page 1 IN
Page 12 and 13: TABLE OF CONTENTS (Continued) Chapt
Page 14 and 15: LIST OF FIGURES Figure Page 1.1 Str
Page 16 and 17: LIST OF FIGURES (Continued) Figure
Page 18 and 19: 2 The friction between the photonic
Page 20 and 21: 4 progress towards all-optical inte
Page 22 and 23: As can be seen in Figure 1.2, with
Page 24 and 25: 8 1.1.2 Two Dimensional Photonic Cr
Page 28 and 29: CHAPTER 2 BACKGROUND AND SIGNIFICAN
Page 30 and 31: 14 transfer and computing. Applicat
Page 32 and 33: 16 Chigrin and Lavrinenko in collab
Page 34 and 35: 18 component of the wave vector rem
Page 36 and 37: 20 2.2.1 Transfer Matrix Method The
Page 38 and 39: Figure 2-3 Structure of a 2D photon
Page 40 and 41: 24 enhancing the efficiency of lase
Page 42 and 43: 26 Figure 2-6 A perfect waveguide i
Page 44 and 45: CHAPTER 3 FUNDAMENTALS OF OPTICAL P
Page 46 and 47: 30 the square of its amplitude--i.e
Page 48 and 49: 32 3.2 Control of Properties of Mat
Page 50 and 51: 34 Figure 3.3 Spontaneous-emission
Page 52 and 53: 36 current it generated. But the fi
Page 54 and 55: 38 be used in a solar cell, generat
Page 56 and 57: 40 4.1.3 Spectral Range The spectra
Page 58 and 59: 42 beyond the scope of MultiRad. Th
Page 60 and 61: 44 c. It considers only Silicon as
Page 62 and 63: Figure 5.1 Schematic of bench top e
Page 64 and 65: 48 radiative properties of interest
Page 66 and 67: 50 The final structure of the 3D cr
Page 68 and 69: 52 The wafers are then planarized b
Page 70 and 71: 54 Fig 6.2 Block diagram showing di
Page 72 and 73: 56 decreases to a minimum in a cert
Page 74 and 75: 58 only be carried in one dimension
Page 76 and 77:
Figure 6.9 Simulated transmission t
Page 78 and 79:
62 Fig 6.10 Transmission spectra fo
Page 80 and 81:
64 Figure 6.11(b) Transmission spec
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66 As can be seen from the above ta
Page 84 and 85:
Fig 6.14 Simulated reflectance spec
Page 86 and 87:
Fig 6.16 Simulated transmittance sp
Page 88 and 89:
72 7.2 Recommendations Much of the
Page 90 and 91:
1.4 54.9 58.3 44.6 64.1 1.5 62.4 70
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11.2 60.3 64 53.8 48.2 11.3 59.7 62
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APPENDIX A2 RAW DATA This appendix
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APPENDIX A2 (CONTINUED) 80 0.232 5.
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APPENDIX A2 (CONTINUED) 8Z 0.221 2.
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BIBLIOGRAPHY [1] E. Yablonovitch, "
Page 112:
96 [25] G. E. Jellison, F. A. Modin
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