文献类型：期刊文献

英文题名：Optical constants of some liquid crystals measured by terahertz time-domain spectroscopy

作者：Sun, Hui-Juan[1,3]; Zhou, Qing-Li[2]; Shi, Yu-Lei[2]; Liu, Jian-Feng[2]; Zhao, Dong-Mei[2]; Zhang, Cun-Lin[2]

第一作者：Sun, Hui-Juan

通讯作者：Sun, H.-J.

机构：[1] Basic Course Department, Beijing Union University, Beijing 100101, China; [2] Department of Physics, Capital Normal University, Beijing 100048, China; [3] School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China

第一机构：北京联合大学基础教学部

年份：2011

卷号：8195

外文期刊名：Proceedings of SPIE - The International Society for Optical Engineering

收录：EI(收录号：20113614296221)

语种：英文

外文关键词：Optical constants - Time domain analysis - Liquid crystals - Refractive index - Plasmons - Reflectometers - Spectrophotometers

摘要：Terahertz spectroscopy contains rich physical, chemical, and structural information of the materials, and one unique attribute of terahertz is their ability to sensitively measure the induced molecular dipole moments of many liquid crystals. In this paper, the transmission spectra of several liquid crystals 5CB, TEB300, LC203000 LCs were measured by THz time-domain spectroscopy technique and free-space electro-optic sampling method. The refractive indexes of the mentioned liquid crystals in the THz range are calculated. Furthermore, the optical constants are compared and analyzed, expecting to fill the spectrum gap of liquid crystals in the THz range and provide the experimental and theoretical foundation for the application of liquid crystals. ? 2011 SPIE.