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Proceedings Paper

Optical properties study on some nematic liquid crystals in the terahertz range
Author(s): Huijuan Sun; Qingli Zhou; Yulei Shi; Dongmei Zhao; Cunlin Zhang
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Paper Abstract

Because of its unique nature, terahertz radiation has wide application prospects in physics, chemistry, biomedicine, communications, radar and security checks, etc. Liquid crystal, which is a kind of macromolecule soft material with special properties in physical and chemical, has been widely used in planar displays. Recently, much attention has been paid to non-display studies of liquid crystals, covering the fields of biology, chemistry, physics, material and engineering. In this paper, the transmission spectra of several nematic liquid crystals such as 5CB, TEB300, RDP-92975 are measured by THz time-domain spectroscopy technique and free-space electro-optic sampling method. The absorption coefficients of liquid crystals in the THz range are calculated. Furthermore, the optical parameters 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.

Paper Details

Date Published: 4 November 2010
PDF: 8 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78541A (4 November 2010); doi: 10.1117/12.870415
Show Author Affiliations
Huijuan Sun, Beijing institute of Technology (China)
Beijing Union Univ. (China)
Qingli Zhou, Capital Normal Univ. (China)
Yulei Shi, Capital Normal Univ. (China)
Dongmei Zhao, Capital Normal Univ. (China)
Cunlin Zhang, Capital Normal Univ. (China)

Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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