Submillisecond-Response Polymer Network Liquid Crystal Phase Modulators

Polymers

Zhiyong Yang¹  Yannanqi Li¹  Shin-Tson Wu¹  Ran Chen²  Juanli Li³  Lingchao Mo³  Minggang Hu³ 

[1] College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA;Key Laboratory of Applied Surface and Colloid Chemistry, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710065, China;Optical and Electrical Material Center, Xi’an Modern Chemistry Research Institute, Xi’an 710065, China;

关键词: submillisecond-response;    polymer network liquid crystal;    phase modulators;   

DOI  :  10.3390/polym12122862

来源: DOAJ

【 摘 要 】

A submillisecond-response and light scattering-free polymer-network liquid crystal (PNLC) for infrared spatial light modulators is demonstrated. Our new liquid crystal host exhibits a higher birefringence, comparable dielectric anisotropy, and slightly lower visco-elastic constant than a commonly employed commercial material, HTG-135200. Moreover, the electro-optical performance of our PNLCs with different monomer concentrations, cell gaps, and liquid crystal (LC) hosts is compared and discussed from four aspects: operating voltage, hysteresis, relaxation time, and light scattering loss. The temperature effect on hysteresis is also analyzed. Potential applications of PNLCs for laser beam steering and spatial light modulators especially in the infrared region are foreseeable.

【 授权许可】

Unknown