Open AccessSelf-collimation of light in three-dimensional photonic crystals
Author(s) -
Rumen Iliew,
C. Etrich,
F. Lederer
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.007076
Subject(s) - photonic crystal , optics , collimated light , dispersion (optics) , refractive index , finite difference time domain method , materials science , photonics , inverse , optoelectronics , physics , laser , geometry , mathematics
We calculate three-dimensional (3D) dispersion relations of woodpile and inverse opal photonic crystals. Inspecting the iso-frequency surfaces of the four lowest-order bands at appropriate frequencies we identify regions where self-collimation of light may be expected. These predictions are verified by means of finite-difference time-domain calculations both for high- and low-index photonic crystals.