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Proceedings Paper

Optically addressed spatial light modulator based on bacteriorhodopsin
Author(s): Christian Ritzel; Klaus Meerholz; Christoph R. Bräuchle; Dieter Oesterhelt
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Paper Abstract

Dried oriented purpose-membrane (PM)-films were fabricated by electrosedimentation of aqueous PM-suspensions on ITO- covered slides. The photoelectric output of illuminated PM- films was optimized by adjusting several deposition parameters and the photoelectric signals were used to switch twisted-nematic (TN)- and ferroelectric (FE) liquid-crystal (LC) cells. Due to the quasi differential behavior of the photocurrent with respect to illumination intensity,l a PM/TN system represents an inherent novelty filter. The use of FE-LC cells for permanent data display is demonstrated. A prototype of a pixelated BR-LC-OASLM is presented and experimental results from a device consisting of a BR-film in direct contact with a LC-cell are discussed.

Paper Details

Date Published: 14 October 1998
PDF: 7 pages
Proc. SPIE 3475, Liquid Crystals II, (14 October 1998); doi: 10.1117/12.326908
Show Author Affiliations
Christian Ritzel, Univ. of Munich (Germany)
Klaus Meerholz, Univ. of Munich (Germany)
Christoph R. Bräuchle, Univ. of Munich (Germany)
Dieter Oesterhelt, Max-Planck Institute for Biochemistry (Germany)

Published in SPIE Proceedings Vol. 3475:
Liquid Crystals II
Iam-Choon Khoo, Editor(s)

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