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An Asynchronous Image Subtracting Optically Addressed Spatial Light Modulator

Published online by Cambridge University Press:  01 January 1993

Pierre R. Barbier  and
Garret Moddel
Pierre R. Barbier
Affiliation:
Department of Electrical and Computer Engineering and Optoelectronic Computing Systems Center, University of Colorado, Boulder, CO 80309-0425 , USA
Garret Moddel
Affiliation:
Department of Electrical and Computer Engineering and Optoelectronic Computing Systems Center, University of Colorado, Boulder, CO 80309-0425 , USA
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Abstract

The operation of image-subtraction is useful in optical processing. We report the first asynchronous image-subtracting optically addressed spatial light modulator incorporating a ferroelectric liquid crystal and a color-sensitive a-Si:H p-i-n-i-p photodetector. We present experimental results characterizing the sensitivity of the photodetector current-voltage characteristics to wavelength, and demonstrate image subtraction. Finally, we propose a model that explains the operation of the image-subtracting OASLM.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 297: Symposium A – Amorphous Silicon Technology - 1993 , 1993 , 993
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

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