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Proceedings Paper

Optical constants of some liquid crystals measured by terahertz time-domain spectroscopy
Author(s): Hui-juan Sun; Qing-li Zhou; Cun-lin Zhang
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Paper Abstract

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.

Paper Details

Date Published: 11 August 2011
PDF: 6 pages
Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951P (11 August 2011); doi: 10.1117/12.901094
Show Author Affiliations
Hui-juan Sun, Beijing Union Univ. (China)
Beijing Institute of Technology (China)
Qing-li Zhou, Capital Normal Univ. (China)
Cun-lin Zhang, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 8195:
International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications
X.-C. Zhang; Jianquan Yao; Cunlin Zhang; Zhenzhan Wang, Editor(s)

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