Bandgap separation and optical switching in nonlinear chiral photonic crystal with layered structure

Author

Li, Junqing ; Jin, Lei ; Li, Li ; Li, Chunfei

Author_Institution

Dept. of Phys., Harbin Inst. of Technol.

Volume

18

Issue

11

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1261

Lastpage

1263

Abstract

The chiral photonic crystal (PC) with layered structure is investigated by using the finite-difference time-domain method. The bandgap separation for right-hand/left-hand circularly polarized light in chiral PC is demonstrated by comparing to the achiral case. The effect of layer number and the optical nonlinearity on bandgap structure is analyzed. Optical switching with the help of the change in bandgap structure is discussed. A novel scheme of an all-optical switch based on sideband improved by apodization is proposed

Keywords

chirality; finite difference time-domain analysis; light polarisation; nonlinear media; nonlinear optics; optical switches; photonic band gap; photonic crystals; apodization; bandgap separation; finite-difference time-domain method; layered structure; left-hand circularly polarized light; nonlinear chiral photonic crystal; optical switching; right-hand circularly polarized light; Fiber nonlinear optics; Finite difference methods; Nonlinear optics; Optical filters; Optical pumping; Optical switches; Photonic band gap; Photonic crystals; Refractive index; Time domain analysis; Apodization; nonlinear optics; optical switch; photonic crystal (PC);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.875321

Filename

1634563