Large-gain photorefractive polymers

Anders Grunnet-Jepsen; C. L. Thompson; Robert J. Twieg; Kevin D. Belfield; Matthew S. Bratcher; William E. Moerner

doi:10.1117/12.290242

9 October 1997 Large-gain photorefractive polymers

Anders Grunnet-Jepsen, C. L. Thompson, Robert J. Twieg, Kevin D. Belfield, Matthew S. Bratcher, William E. Moerner

Author Affiliations +

Proceedings Volume 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II; (1997) https://doi.org/10.1117/12.290242
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We describe on-going research to develop photorefractive polymeric materials with improved speed, material stability, and high beam coupling gain. The demonstration of significantly improved two-beam coupling is shown to mark the entry into a gain regime which enables the observation of new effects for the first time, such as beam fanning and self-pumped phase-conjugation. These effects have previously been reserved to a few thick high gain inorganic photorefractive crystals. We discuss how the large beam coupling has forced the reinterpretation of such traditional characterization techniques such as the grating translation method for the determination of the spatial phase of the index grating. Our subsequent material study focuses on several compositional variations to investigate the effect that varying the chromophore and charge transporting polymer has on the photorefractive effect.

Citation Download Citation

Anders Grunnet-Jepsen, C. L. Thompson, Robert J. Twieg, Kevin D. Belfield, Matthew S. Bratcher, and William E. Moerner "Large-gain photorefractive polymers", Proc. SPIE 3144, Xerographic Photoreceptors and Organic Photorefractive Materials II, (9 October 1997); https://doi.org/10.1117/12.290242

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