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Proceedings Paper

Spatial Light Modulators And Their Applications
Author(s): J. P. Huignard
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Paper Abstract

The function of an optically addressed spatial light modulator (SLM) is to convert the intensity distribution of an incident scene into a coherent image, or into a high brigthness incoherent image. The applications of these transducers are therefore very large since they extend, from the field of coherent optical processing and computing (Incoherent to coherent conversion) to the high resolution video image projection. A great interest is now devoted to the technological developments of these devices in several laboratories using different approaches. The basic principle of operation of an optically addressed light valve is the following. A photosensitive layer detects the incident intensity distribution and induces a charge distribution onto a material which modifies its optical properties as a function of the photoinduced voltage. Finally, the incoherent or coherent illumination beam transmitted (or reflected) by the SLM sees its amplitude or phase spatially modulated. In the last few years, the list of spatial light modulators under research and development expanded considerably.

Paper Details

Date Published: 18 May 1987
PDF: 12 pages
Proc. SPIE 0702, International Topical Meeting on Image Detection and Quality, (18 May 1987); doi: 10.1117/12.966779
Show Author Affiliations
J. P. Huignard, Thomson-CSF (France)

Published in SPIE Proceedings Vol. 0702:
International Topical Meeting on Image Detection and Quality
Lucien F. Guyot, Editor(s)

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