Tunable Channel Drop Filter in a Two-Dimensional Photonic Crystal Modulated by a Nematic Liquid CrystalReportar como inadecuado




Tunable Channel Drop Filter in a Two-Dimensional Photonic Crystal Modulated by a Nematic Liquid Crystal - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Journal of Nanomaterials - Volume 2006 2006, Article ID 52946, 6 pages

Department of Mechanical Engineering, National Cheng Kung University, No.1, Ta-Hsueh Road, Tainan 701, Taiwan

Received 27 September 2005; Revised 15 February 2006; Accepted 23 February 2006

Academic Editor: Bohua Sun

Copyright © 2006 Chen-Yang Liu and Lien-Wen Chen. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Photonic crystals PCs have many potential applications becauseof their ability to control light-wave propagation and becausePC-based waveguides may be integrated into optical circuits. Wepropose a novel tunable PC channel drop filter based on nematicliquid crystals and investigate its properties numerically byusing the finite-difference time-domain FDTD method. The refractive indices of liquid crystals can be actively modulatedafter infiltrating nematic liquid crystals into the microcavity inPC waveguides with square lattices. Then we can control lightpropagation in a PC waveguide. We analyze the Q-factors andresonance frequencies of a tunable PC channel drop filter byconsidering various indices modulation of liquid crystals. Thenovel component can be used as wavelength division multiplexing inphotonic integrated circuits.





Autor: Chen-Yang Liu and Lien-Wen Chen

Fuente: https://www.hindawi.com/



DESCARGAR PDF




Documentos relacionados