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Optical Limiting in a Photorefractive Polymer

Published online by Cambridge University Press:  03 September 2012

A. Grunnet-Jepsen
Affiliation:
Department of Chemistry and Biochemistry, University of California San Diego, CA 92093-0340, agrunnet@ucsd.edu, wmoerner@ucsd.edu
C. L. Thompson
Affiliation:
Department of Chemistry and Biochemistry, University of California San Diego, CA 92093-0340, agrunnet@ucsd.edu, wmoerner@ucsd.edu
W. E. Moerner
Affiliation:
Department of Chemistry and Biochemistry, University of California San Diego, CA 92093-0340, agrunnet@ucsd.edu, wmoerner@ucsd.edu
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Abstract

Optical limiting has been suggested as a possible device application of high gain photorefractive (PR) polymers. The principle of operation relies on the existence of amplified scattering (beam fanning) to deplete the intensity of the incident coherent optical beam. The newest photorefractive polymers show a combination of high gain and reasonable speed, and we show how these materials behave as a beam fanning optical limiter and as a limiter based on self-pumped phase conjugation. A prototype cascaded beam fanning device is demonstrated and its salient features are discussed.

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Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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