Keywords

photonic crystals, diffraction, numerical modeling, microfabrication, micro-optics

Abstract

Photonic crystals and nanophotonics have received a great deal of attention over the last decade, largely due to improved numerical modeling and advances in fabrication technologies. To this day, fabrication and optical behavior remain decoupled during the design phase and numerous assumptions are made about "perfect" geometry. As research moves from theory to real devices, predicting device behavior based on realistic geometry becomes critical. In this dissertation, a set of numerical tools was developed to model micro and nano fabrication processes. They were combined with equally capable tools to model optical performance of the simulated structures. Using these tools, it was predicted and demonstrated that 3D nanostructures may be formed on a standard mask aligner. A space-variant photonic crystal filter was designed and optimized based on a simple fabrication method of etching holes through hetero-structured substrates. It was found that hole taper limited their optical performance and a method was developed to compensate. A method was developed to tune the spectral response of guided-mode resonance filters at the time of fabrication using models of etching and deposition. Autocloning was modeled and shown that it could be used to form extremely high aspect ratio structures to improve performance of form-birefringent devices. Finally, the numerical tools were applied to metallic photonic crystal devices.

Notes

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Graduation Date

2006

Semester

Spring

Advisor

Johnson, Eric

Degree

Doctor of Philosophy (Ph.D.)

College

College of Optics and Photonics

Degree Program

Optics

Format

application/pdf

Identifier

CFE0001159

URL

http://purl.fcla.edu/fcla/etd/CFE0001159

Language

English

Length of Campus-only Access

None

Access Status

Doctoral Dissertation (Open Access)

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