The objective of this research is to present a set of powerful simulation, design,
and characterization tools suitable for studying novel nanophotonic devices. The
simulation tools include a three-dimensional finite-difference time-domain code adapted
for parallel computing that allows for a wide range of simulation conditions and material
properties to be studied, as well as a semi-analytical Green's function-based complex
mode technique for studying loss in photonic crystal waveguides. The design tools
consist of multifunctional photonic crystal-based template that has been simulated with
nonlinear effects and measured experimentally, and planar slab waveguide structure that
provides highly efficient second harmonic generation is a chip-scale device suitable for
photonic integrated circuit applications. The characterization tool is composed of a
phase-sensitive measurement system using a lock-in amplifier and high-precision optical
stages, suitable for probing the optical characteristics of nanoscale devices. The high
signal-to-noise ratio and phase shift data provided by the lock-in amplifier allow for
accurate transmission measurements as well as a phase spectrum that contains
information about the propagation behavior of the device beyond what is provided by the
amplitude spectrum alone.
| Identifer | oai:union.ndltd.org:GATECH/oai:smartech.gatech.edu:1853/33932 |
| Date | 04 December 2009 |
| Creators | Reinke, Charles M. |
| Publisher | Georgia Institute of Technology |
| Source Sets | Georgia Tech Electronic Thesis and Dissertation Archive |
| Detected Language | English |
| Type | Dissertation |
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