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Proceedings Paper

Advances in polarization-based liquid crystal optical filters
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Paper Abstract

Liquid crystal tunable filters are gaining wide acceptance in such diverse areas as optical fiber communications, astronomy, remote sensing, pollution monitoring, color generation for display and medical diagnostics. The large aperture and imaging capability of liquid crystal tunable filters represent a distinct advantage over conventional dispersive spectral analysis techniques. Furthermore, benefits of liquid crystal tunable filters over acousto-optic tunable filters include low power consumption, low addressing voltage, excellent image quality and large clear aperture. We discuss polarization interference filters based on liquid crystal tuning elements. While liquid crystal tunable filters based nematic liquid crystal, using Fabry-Perot and polarization interference effects are commercially developed, only recently has the emphasis been on liquid crystal tunable filters to include current novel developments in high-speed, analog ferroelectric-liquid crystals (FLCs). Compared to nematic liquid crystal, FLC-based tunable optical filters offer fast response time and increased field-of-view.

Paper Details

Date Published: 14 May 2002
PDF: 8 pages
Proc. SPIE 4658, Liquid Crystal Materials, Devices, and Applications VIII, (14 May 2002); doi: 10.1117/12.467444
Show Author Affiliations
Xiao-wei Xia, Boulder Nonlinear Systems, Inc. (United States)
Jay E. Stockley, Boulder Nonlinear Systems, Inc. (United States)
Teresa K. Ewing, Boulder Nonlinear Systems, Inc. (United States)
Steven A. Serati, Boulder Nonlinear Systems, Inc. (United States)


Published in SPIE Proceedings Vol. 4658:
Liquid Crystal Materials, Devices, and Applications VIII
Liang-Chy Chien, Editor(s)

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