Transient biphotonic holographic grating in photoisomerizative azo materials

Pengfei Wu; Li Wang; Jiren Xu; Bingsuo Zou; Xiong Gong; Guilan Zhang; Guoqing Tang; Wenju Chen; Wei Huang

doi:10.1103/PhysRevB.57.3874

Transient biphotonic holographic grating in photoisomerizative azo materials

Pengfei Wu, Li Wang, Jiren Xu, Bingsuo Zou, Xiong Gong, Guilan Zhang, Guoqing Tang, Wenju Chen, and Wei Huang

Phys. Rev. B 57, 3874 – Published 15 February 1998

Abstract

Transient grating of biphotonic holography is studied theoretically and experimentally in trans-cis isomerization azo materials. The theoretical description of the transient biphotonic holographic grating agrees well with experimental results in methyl yellow-polymethylmethacrylate and ethyl orange-polyvinylalcohol films. The mechanism of the biphotonic holographic grating in the azo materials can be attributed to the redistribution of cis isomers induced by both the short-wavelength light and the long-wavelength light, which is confirmed by the experimental results of polarized biphotonic holography.

Received 23 July 1997

DOI:https://doi.org/10.1103/PhysRevB.57.3874

Authors & Affiliations

Pengfei Wu^*, Li Wang, Jiren Xu, and Bingsuo Zou^†

Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, China

Xiong Gong, Guilan Zhang, Guoqing Tang, and Wenju Chen

Institute of Modern Optics, Nankai University, Tianjin 300071, China

Wei Huang

Institute of Materials Research and Engineering, National University of Singapore, Singapore 119260, Singapore

^*Author to whom correspondence should be addressed.
^†Present address: School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332.

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Vol. 57, Iss. 7 — 15 February 1998

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Physical Review B

covering condensed matter and materials physics