用于中波红外应用的低吸收液晶

Low absorption liquid crystals for mid-wave infrared applications.

作者信息

Chen Yuan, Xianyu Haiqing, Sun Jie, Kula Przemyslaw, Dabrowski Roman, Tripathi Suvagata, Twieg Robert J, Wu Shin-Tson

机构信息

College of Optics and Photonics, University of Central Florida, Orlando, Florida 32816, USA.

出版信息

Opt Express. 2011 May 23;19(11):10843-8. doi: 10.1364/OE.19.010843.

DOI:10.1364/OE.19.010843

PMID:21643341

Abstract

A partially fluorinated terphenyl liquid crystal with low absorption in both mid-wave infrared (MWIR) and near IR regions is developed and its properties evaluated. This compound exhibits a nematic phase (although only about 2 °C), reasonably high birefringence (Δn~0.2), low visco-elastic coefficient, and modest dielectric anisotropy (Δε = -2.7). This compound serves as an important first example for future development of low-loss MWIR liquid crystals and devices.

摘要

开发了一种在中波红外（MWIR）和近红外区域均具有低吸收的部分氟化三联苯液晶，并对其性能进行了评估。该化合物呈现向列相（尽管只有约2°C），具有相当高的双折射（Δn~0.2）、低粘弹性系数和适度的介电各向异性（Δε = -2.7）。该化合物为未来低损耗MWIR液晶及器件的发展提供了一个重要的首个实例。