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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 28 — Oct. 1, 2010
  • pp: 5212–5216

Broad spectrum measurement of the birefringence of an isothiocyanate based liquid crystal

Oksana Trushkevych, Huan Xu, Tianxin Lu, J. Axel Zeitler, Rakchanok Rungsawang, Felix Gölden, Neil Collings, and William A. Crossland  »View Author Affiliations


Applied Optics, Vol. 49, Issue 28, pp. 5212-5216 (2010)
http://dx.doi.org/10.1364/AO.49.005212


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Abstract

Tunable materials with high anisotropy of refractive index and low loss are of particular interest in the microwave and terahertz range. Nematic liquid crystals are highly sensitive to electric and magnetic fields and may be designed to have particularly high birefringence. In this paper we investigate birefringence and absorption losses in an isothiocyanate based liquid crystal (designed for high anisotropy) in a broad range of the electromagnetic spectrum, namely 0.1 4 GHz , 30 GHz , 0.5 1.8 THz , and in the visible and near-infrared region ( 400 nm 1600 nm ). We report high birefringence ( Δ n = 0.19 0.395 ) and low loss in this material. This is attractive for tunable microwave and terahertz device applications.

© 2010 Optical Society of America

OCIS Codes
(160.3710) Materials : Liquid crystals
(300.6390) Spectroscopy : Spectroscopy, molecular
(300.6550) Spectroscopy : Spectroscopy, visible
(300.6495) Spectroscopy : Spectroscopy, teraherz

ToC Category:
Materials

History
Original Manuscript: August 27, 2010
Manuscript Accepted: August 30, 2010
Published: September 20, 2010

Citation
Oksana Trushkevych, Huan Xu, Tianxin Lu, J. Axel Zeitler, Rakchanok Rungsawang, Felix Gölden, Neil Collings, and William A. Crossland, "Broad spectrum measurement of the birefringence of an isothiocyanate based liquid crystal," Appl. Opt. 49, 5212-5216 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-28-5212

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