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Optical Addressing of High-Speed Spatial Light Modulators with Hydrogenated Amorphous Silicon

Published online by Cambridge University Press:  26 February 2011

G. Moddel ,
C. T. Kuo ,
K. M. Johnson  and
W. Li
G. Moddel
Affiliation:
University of Colorado, Department of Electrical and Computer Engineering and Center for Optoelectronic Computing Systems, Boulder, Colorado 80309-0425
C. T. Kuo
Affiliation:
University of Colorado, Department of Electrical and Computer Engineering and Center for Optoelectronic Computing Systems, Boulder, Colorado 80309-0425
K. M. Johnson
Affiliation:
University of Colorado, Department of Electrical and Computer Engineering and Center for Optoelectronic Computing Systems, Boulder, Colorado 80309-0425
W. Li
Affiliation:
University of Colorado, Department of Electrical and Computer Engineering and Center for Optoelectronic Computing Systems, Boulder, Colorado 80309-0425
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Abstract

We demonstrate the operation of a high-speed optically addressed spatial light modulator utilizing a hydrogenated amorphous silicon photosensor and a ferroelectric liquid crystal modulator. The device has numerous optical parallel processing and interconnect applications. It combines desirable resolution, switching speed, size, and contrast characteristics. The devices are driven by a square-wave voltage, such that read and write operations take place under reverse bias, and an erase operation occurs under forward bias. The capacitance associated with the photosensor plays a critical role in the device performance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 118: Symposium E – Amorphous Silicon Technology , 1988 , 405
Copyright
Copyright © Materials Research Society 1988

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