Submillisecond-Response Polymer Network Liquid Crystal Phase Modulators

Autor: Yannanqi Li, Zhiyong Yang, Ran Chen, Lingchao Mo, Juanli Li, Minggang Hu, Shin-Tson Wu
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Polymers, Vol 12, Iss 12, p 2862 (2020)
Druh dokumentu: article
ISSN: 2073-4360
DOI: 10.3390/polym12122862
Popis: 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.
Databáze: Directory of Open Access Journals
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