Title :
Light propagation in a photonic-crystal-slab line-defect waveguide
Author :
Tokushima, Masatoshi ; Yamada, Hirohito
Author_Institution :
Fundamental Res. Labs., NEC Corp., Tsukuba, Japan
fDate :
7/1/2002 12:00:00 AM
Abstract :
The guided and leaky modes of a photonic-crystal-slab line-defect waveguide were investigated by means of the direct three-dimensional (3-D) finite-difference time-domain (FDTD) simulation. The simulation predicted quasi-guided modes with long lifetimes in the cladding-mode continuum, while quasi-3-D analyses using projected band diagrams revealed only the existence of guided modes outside that continuum. It is shown that the direct 3-D analysis is necessary to account for measured transmission data for the photonic-crystal-slab line-defect waveguide with a finite length
Keywords :
finite difference time-domain analysis; light propagation; optical waveguides; photonic band gap; silicon-on-insulator; 3-D FDTD simulation; SOI-based PC slab; Si-SiO2; cladding-mode continuum; direct 3-D analysis; guided modes; leaky modes; light propagation; photonic-crystal-slab line-defect waveguide; projected band diagrams; quasi-3-D analyses; quasi-guided modes; transmission data; Circuits; Finite difference methods; Optical modulation; Optical propagation; Optical reflection; Optical waveguides; Photonic crystals; Programmable control; Slabs; Time domain analysis;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2002.1017585
