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Proceedings Paper

Photorefractive polymer in reflection geometry with large efficiency
Author(s): Muhsin Eralp; Jayan Thomas; Savaş Tay; Guoqiang Li; Robert Norwood; Nasser Peyghambarian
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Paper Abstract

We have investigated photorefractive (PR) properties of a polymer composite with low glass-transition temperature (Tg) in a symmetric reflection geometry. A diffraction efficiency of more than 30% is observed in 105μm thick devices. In low Tg photorefractive polymers, poling of the nonlinear optical chromophores at room temperature leads to birefringence in the material. The birefringence will alter the Bragg condition, as the propagation vectors for object and reference beams as well as the readout angle are influenced. We observed the Bragg-mismatch effect that caused a reduction in diffraction efficiency as the external field is increased. We have varied the angle of readout beam slightly at each bias field to get the highest efficiency.

Paper Details

Date Published: 6 October 2006
PDF: 7 pages
Proc. SPIE 6331, Linear and Nonlinear Optics of Organic Materials VI, 63310B (6 October 2006); doi: 10.1117/12.702834
Show Author Affiliations
Muhsin Eralp, College of Optical Sciences, Univ. of Arizona (United States)
Jayan Thomas, College of Optical Sciences, Univ. of Arizona (United States)
Savaş Tay, College of Optical Sciences, Univ. of Arizona (United States)
Guoqiang Li, College of Optical Sciences, Univ. of Arizona (United States)
Robert Norwood, College of Optical Sciences, Univ. of Arizona (United States)
Nasser Peyghambarian, College of Optical Sciences, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 6331:
Linear and Nonlinear Optics of Organic Materials VI
Robert A. Norwood, Editor(s)

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