title: Multichannel photonic devices based on tristable polymer-stabilized cholesteric textures.
abstract: We demonstrate in this paper an electrically tunable photonic device based on one-dimensional photonic crystal (PC) infiltrated with polymer-stabilized cholesteric texture (PSCT) as a central defect layer. With the hybrid PC/PSCT structure, not only is the wavelength of each defect mode switchable among three major stable states by various appropriate frequency-modulated voltage pulses, but also the intensity can be electrically tuned in multi-metastable states. As a result, an electrically controllable multichannel photonic device with several alluring features is proposed. It is wavelength-switchable, intensity-tunable, and polarizer-free and possesses optical tristability in the defect modes to reduce power consumption.
authors: Department of Physics, Chung Yuan Christian University, Chung-Li 32023, Taiwan.
authors: Yu-Cheng
authors: YC
authors: Hsiao
authors: Chien-Tsung
authors: CT
authors: Hou
authors: Victor Ya
authors: VY
authors: Zyryanov
authors: Wei
authors: W
authors: Lee
mesh_terms: D003460:Crystallization / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D010783:Photometry / Q000295:instrumentation*; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013499:Surface Properties
chemical_list: D011108:Polymers