Optically addressed spatial light modulator based on bacteriorhodopsin

Christian Ritzel; Klaus Meerholz; Christoph R. Bräuchle; Dieter Oesterhelt

doi:10.1117/12.326908

14 October 1998 Optically addressed spatial light modulator based on bacteriorhodopsin

Christian Ritzel, Klaus Meerholz, Christoph R. Bräuchle, Dieter Oesterhelt

Proceedings Volume 3475, Liquid Crystals II; (1998) https://doi.org/10.1117/12.326908
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

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.

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Christian Ritzel, Klaus Meerholz, Christoph R. Bräuchle, and Dieter Oesterhelt "Optically addressed spatial light modulator based on bacteriorhodopsin", Proc. SPIE 3475, Liquid Crystals II, (14 October 1998); https://doi.org/10.1117/12.326908

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KEYWORDS

Absorption

Liquid crystals

Optically addressed spatial light modulators

Phase modulation

Dielectric mirrors

Switching

Glasses

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