Light propagation in a photonic-crystal-slab line-defect waveguide

Author

Tokushima, Masatoshi ; Yamada, Hirohito

Author_Institution

Fundamental Res. Labs., NEC Corp., Tsukuba, Japan

Volume

38

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

753

Lastpage

759

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/JQE.2002.1017585

Filename

1017585