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Proceedings Paper

Terahertz liquid crystal tunable filter
Author(s): Guang-jun Ren; Xin-chuang Wang; Xiu-rong Ma; Jian-quan Yao
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Paper Abstract

We construct and characterize a room-temperature tunable Terahertz(THz) liquid crystal(LC) filter. Liquid crystal is a substance which is intervenient between inerratic crystal and isotropy liquid, because their molecular long-range are not likeness crystal, so they are easily affected by exterior conditions, such as electric field, magnetic field, temperature and stress etc., accordingly, their optical characters are change. According to the electrooptic effect of liquid crystal and the theory of Lyot filter, tunable Lyot liquid crystal filter is designed and tunable F-P liquid crystal filter is designed too. It is proved that the tunable liquid crystal filter has great tuning range and narrow band.

Paper Details

Date Published: 16 February 2009
PDF: 6 pages
Proc. SPIE 7277, Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology, 72770L (16 February 2009); doi: 10.1117/12.821478
Show Author Affiliations
Guang-jun Ren, Tianjin Univ. of Technology (China)
Tianjin Univ. (China)
Xin-chuang Wang, Tianjin Univ. of Technology (China)
Xiu-rong Ma, Tianjin Univ. of Technology (China)
Jian-quan Yao, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 7277:
Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology
Jianquan Yao; Shenggang Liu; Xi-Cheng Zhang, Editor(s)

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