Title :
Grating-Induced Dual Mode Couplings in the Negative-Index Slab Waveguide
Author :
Kim, Kyoung-Youm ; Lee, Il-Min ; Lee, Byoungho
Author_Institution :
Dept. of Opt. Eng., Sejong Univ., Seoul, South Korea
Abstract :
In a slab waveguide where negative-index materials are adopted as a core layer, we show that a single-period grating can act as both a Bragg reflector and a transmission grating, which enables us to achieve dual-wavelength mode couplings via a single grating.
Keywords :
Bragg gratings; metamaterials; optical couplers; optical materials; Bragg reflector; core layer; grating-induced dual mode coupling; negative-index materials; single-period grating; slab waveguide; transmission grating; Guiding mode; metamaterial; waveguide;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2028741
