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Optics Letters

Optics Letters


  • Vol. 17, Iss. 16 — Aug. 15, 1992
  • pp: 1107–1109

Subsecond grating growth in a photorefractive polymer

S. M. Silence, C. A. Walsh, J. C. Scott, T. J. Matray, R. J. Twieg, F. Hache, G. C. Bjorklund, and W. E. Moerner  »View Author Affiliations

Optics Letters, Vol. 17, Issue 16, pp. 1107-1109 (1992)

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We survey the dynamics of the photorefractive effect in a methyl methacrylate copolymer with the nonlinear chromophore p-nitroaniline in a pendant side group doped with a charge-transport agent, diethylaminobenz-aldehyde diphenylhydrazone, a material that represents a new class of photorefractive polymer. The grating growth times are several orders of magnitude smaller than that for the previous epoxy-based photorefractive polymers and fall below 1 s at the highest intensities used. Grating competition and revelation effects suggest that charge carriers other than photogenerated holes are mobile. A sublinear dependence of growth rate on writing intensity implies that shallow traps may also be present.

© 1992 Optical Society of America

Original Manuscript: May 7, 1992
Published: August 15, 1992

S. M. Silence, C. A. Walsh, J. C. Scott, T. J. Matray, R. J. Twieg, F. Hache, G. C. Bjorklund, and W. E. Moerner, "Subsecond grating growth in a photorefractive polymer," Opt. Lett. 17, 1107-1109 (1992)

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