Tunable band gap in a photonic crystal modulated by a nematic liquid crystal

Chen Yang Liu; Lien Wen Chen

doi:10.1103/PhysRevB.72.045133

Tunable band gap in a photonic crystal modulated by a nematic liquid crystal

Chen Yang Liu, Lien Wen Chen

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation. We have investigated the tunable band gap in a photonic crystal modulated by a nematic liquid crystal. Numerical simulations show that the band gaps can be continuously tuned in two-dimensional square and triangular lattices of cylinders by infiltrating nematic liquid crystals. Then we can control the band gap in a PC structure. We also analyzed the gap maps of tunable band gap by considering various indices modulation of liquid crystals. These results can be used as tunable field-sensitive polarizer in photonic integrated circuits.

Original language	English
Article number	045133
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	72
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.72.045133
Publication status	Published - 2005 Jul 15

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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