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Crystals 2016, 6(10), 129;

Dynamic Tuning and Memory Switching of Defect Modes in a Hybrid Photonic Structure

College of Photonics, National Chiao Tung University, Guiren Dist., Tainan 71150, Taiwan
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk 660036, Russia
Laboratory for Nonlinear Optics and Spectroscopy, Siberian Federal University, Krasnoyarsk 660041, Russia
Author to whom correspondence should be addressed.
Academic Editor: Charles Rosenblatt
Received: 21 July 2016 / Revised: 19 September 2016 / Accepted: 29 September 2016 / Published: 10 October 2016
(This article belongs to the Section Liquid Crystals)
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We propose a memorable and electrically tunable photonic device by infiltrating a dual-mode chiral-doped dual-frequency liquid crystal (LC) as the central defect layer in a one-dimensional photonic crystal (PC). According to the transmission properties of this structure, the wavelength tunability of defect modes is obtained by manipulating the LC layer in the dynamic mode due to the electrically controlled birefringence effect. Moreover, the switching between two memorable states, the splay and π-twist states, creates two distinct sets of defect modes at null voltage. The spectral characteristics of this device ensure its potential application as an energy-efficient multichannel wavelength filter. View Full-Text
Keywords: photonic crystals; dual-frequency liquid crystals; energy-efficient photonic devices photonic crystals; dual-frequency liquid crystals; energy-efficient photonic devices

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Wang, H.-T.; Wu, P.-C.; Timofeev, I.V.; Zyryanov, V.Y.; Lee, W. Dynamic Tuning and Memory Switching of Defect Modes in a Hybrid Photonic Structure. Crystals 2016, 6, 129.

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