Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-25T19:35:41.971Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Moddel, G. and Barbier, P.R. in Amorphous Silicon Technologv-1991, edited by Madan, A., Hamakawa, Y., Thompson, M.G., Taylor, P.C., LeComber, P.G. (Mat. Res. Soc. Proc. 219, Pittsburgh, PA, 1991), pp. 155–165.Google Scholar
2. Landreth, B. and Moddel, G., Appl. Opt. 31, 393 (1992).Google Scholar
3. Kurokawa, T. and Fukushima, S. in Spatial Light Modulators and Applications, (OSA Technical Digest Series 14, Washington, D.C., 1990), pp. 20–23.Google Scholar
4. Robinson, M.G., Opt. Lett. 17, 895 (1992).Google Scholar
5. Chang, K.C., Chang, C.Y., Fang, Y.K. and Jwo, S.C., IEEE Elec. Dev. Lett. 8, 64 (1987).Google Scholar
6. Tsai, H.K., Lee, S.C. and Lin, W.L., IEEE Elec. Dev. Lett. 8, 365 (1987).Google Scholar
7. Tsai, H.K. and Lee, S.C., Appl. Phys. Lett. 52, 275 (1988).Google Scholar
8. Barbier, P.R. and Moddel, G., Appl. Opt. 31, 3898 (1992).Google Scholar