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Proceedings Paper

Dual frequency nematic liquid crystal spatial light modulator with modulation depth 0-2pi and operation rate in hundreds Hz region
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Paper Abstract

The experimental search of the shape of electrical voltage is presented for controlling the optical phase modulator based on dual frequency nematic liquid crystal. Two basic approaches were tested. One is based on universal relation between two driving frequencies, below and above inversion point, respectively. Another approach uses the combination of pulses of both frequencies, which allow us, at first, to provide the fast transition between chosen retardations and , at second, to hold final retardation for the necessary duration.

Paper Details

Date Published: 6 November 2002
PDF: 11 pages
Proc. SPIE 4825, High-Resolution Wavefront Control: Methods, Devices, and Applications IV, (6 November 2002); doi: 10.1117/12.451969
Show Author Affiliations
Leonid A. Beresnev, Army Research Lab. (United States)
Gary W. Carhart, Army Research Lab. (United States)
David Campbell, Johns Hopkins Univ. (United States)
John D. Gonglewski, Air Force Research Lab. (United States)
David Charles Dayton, Applied Technology Associates (United States)

Published in SPIE Proceedings Vol. 4825:
High-Resolution Wavefront Control: Methods, Devices, and Applications IV
John D. Gonglewski; Mikhail A. Vorontsov; Mark T. Gruneisen; Sergio R. Restaino; Robert K. Tyson, Editor(s)

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