Open AccessPolarization and thickness dependent guiding in the photonic crystal slab waveguide
Author(s) -
Khadijeh Bayat,
S.K. Chaudhuri,
S. Safavi-Naeini
Publication year - 2007
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.15.008391
Subject(s) - slab , photonic crystal , optics , finite difference time domain method , polarization (electrochemistry) , waveguide , materials science , plane wave expansion method , refractive index , plane wave expansion , modal , physics , chemistry , geophysics , polymer chemistry
We investigated the impact of the thickness of the twodimensional triangular photonic crystal (PC) on modal propagation along a PC slab waveguide. A single line defect optical waveguide in photonic crystal slab was designed by three-dimensional finite difference time domain method, plane wave expansion and effective index methods. The thickness of the PC slab waveguide was optimized to provide modal propagation for both TE-like and TM-like polarizations within the normalized frequency band of a/lambda=0.26-0.268.