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Updated: Aug 21, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals
Published on: May 29, 2018
TE-TM mode coupling in two-dimensional photonic crystals composed of liquid-crystal rods
Hiroyuki Takeda1, Katsumi Yoshino
1Department of Electronic Engineering, Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan.
Abstract:
We theoretically demonstrate the TE-TM mode coupling in two-dimensional photonic crystals composed of liquid-crystal rods due to anisotropies of liquid crystals. In such structures, the classification of the TE and TM modes is generally impossible, that is, the TE-TM mode coupling occurs. Frequencies of the mode coupling are investigated by the plane-wave expansion method, and the mode coupling is discussed by transmittance calculated by the finite-difference time-domain method. Changes of transmittance by rotating directors of liquid crystals are also discussed.
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