Tunable channel drop filter in a two-dimensional photonic crystal modulated by a nematic liquid crystal

Chen Yang Liu, Lien Wen Chen

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Photonic crystals (PCs) have many potential applications because of their ability to control light-wave propagation and because PC-based waveguides may be integrated into optical circuits. We propose a novel tunable PC channel drop filter based on nematic liquid crystals and investigate its properties numerically by using the finite-difference time-domain (FDTD) method. The refractive indices of liquid crystals can be actively modulated after infiltrating nematic liquid crystals into the microcavity in PC waveguides with square lattices. Then we can control light propagation in a PC waveguide. We analyze the Q-factors and resonance frequencies of a tunable PC channel drop filter by considering various indices modulation of liquid crystals. The novel component can be used as wavelength division multiplexing in photonic integrated circuits.

Original languageEnglish
Article number52946
JournalJournal of Nanomaterials
Volume2006
DOIs
Publication statusPublished - 2006 May 15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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