Share Email Print
cover

Proceedings Paper

Influence of structural parameters on tunable photonic band gaps modulated by liquid crystals
Author(s): Aiqin Huang; Jihong Zheng; Yanmeng Jiang; Zengjun Zhou; Pingyu Tang; Songlin Zhuang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Tunable photonic crystals (PCs), which are infiltrated with nematic liquid crystals (LCs), tune photonic band gap (PBG) by rotating directors of LCs when applied with the external electrical field. Using the plane wave expansion method, we simulated the PBG structure of two-dimensional tunable PCs with a triangular lattice of circular column, square column and hexagon column, respectively. When PCs are composed of LCs and different substrate materials such as germanium (Ge) and silicon (Si), the influence of structural parameters including column shape and packing ration on PBG is discussed separately. Numerical simulations show that absolute PBG can't be found at any conditions, however large tuning range of polarized wave can be achieved by rotating directors of LCs. The simulation results provide theoretical guidance for the fabrication of field-sensitive polarizer with big tunable band range.

Paper Details

Date Published: 8 September 2011
PDF: 8 pages
Proc. SPIE 8120, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V, 81201N (8 September 2011); doi: 10.1117/12.896395
Show Author Affiliations
Aiqin Huang, Univ. of Shanghai for Science and Technology (China)
Jihong Zheng, Univ. of Shanghai for Science and Technology (China)
Yanmeng Jiang, Univ. of Shanghai for Science and Technology (China)
Zengjun Zhou, Univ. of Shanghai for Science and Technology (China)
Pingyu Tang, Univ. of Shanghai for Science and Technology (China)
Songlin Zhuang, Univ. of Shanghai for Science and Technology (China)


Published in SPIE Proceedings Vol. 8120:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications V
Shizhuo Yin; Ruyan Guo, Editor(s)

© SPIE. Terms of Use
Back to Top