Investigation of localized coupled-cavity modes in two-dimensional photonic bandgap structures

Date
2002
Advisor
Instructor
Source Title
IEEE Journal of Quantum Electronics
Print ISSN
0018-9197
Electronic ISSN
Publisher
IEEE
Volume
38
Issue
7
Pages
837 - 843
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

We present a detailed study of the localized coupled-cavity modes in 2-D dielectric photonic crystals. The transmission, phase, and delay time characteristics of the various coupled-cavity structures are measured and calculated. We observed the eigenmode splitting, waveguiding through the coupled cavities, splitting of electromagnetic waves in waveguide ports, and switching effect in such structures. The corresponding field patterns and the transmission spectra are obtained from the finite-difference-time-domain (FDTD) simulations. We also develop a theory based on the classical wave analog of the tight-binding (TB) approximation in solid state physics. Experimental results are in good agreement with the FDTD simulations and predictions of the TB approximation.

Course
Other identifiers
Book Title
Keywords
FDTD, Localization, Photonic bandgap (PBG), Splitters, Switches, Tight-binding approximation, Waveguides, Computer simulation, Crystal structure, Dielectric materials, Electromagnetic waves, Energy gap, Finite difference method, Optical materials, Photons, Semiconductor superlattices, Solid state physics, Time domain analysis, Waveguide couplers, Eigenmode splitting, Field patterns, Light wave, Localized coupled-cavity modes, Optical superlattices, Photonic bandgap structures, Photonic crystal, Switching effect, Tight binding approximation, Transmission spectra, Crystals
Citation
Published Version (Please cite this version)