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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 2 — Feb. 1, 1998
  • pp: 905–913

Systematics of two-wave mixing in a photorefractive polymer

A. Grunnet-Jepsen, C. L. Thompson, and W. E. Moerner  »View Author Affiliations


JOSA B, Vol. 15, Issue 2, pp. 905-913 (1998)
http://dx.doi.org/10.1364/JOSAB.15.000905


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Abstract

The high-performance photorefractive polymer composite PVK:PDCST:BBP:C60 is investigated in detail by use of optical two-wave mixing characterization measurements in conjunction with the grating translation technique for determination of the photorefractive phase shift. A large effective trap density of Neff = 1.5 × 1017 cm−3 is estimated from the dependence of the phase shift on the grating spacing and the applied electric field. The theory of orientational enhancement is successfully used to explain the observed photorefractive response, and in this low-glass-transition temperature system the modulation of the refractive index is shown to stem primarily from the spatial modulation of the birefringence.

© 1998 Optical Society of America

OCIS Codes
(050.5080) Diffraction and gratings : Phase shift
(160.5320) Materials : Photorefractive materials
(160.5470) Materials : Polymers
(190.7070) Nonlinear optics : Two-wave mixing

Citation
A. Grunnet-Jepsen, C. L. Thompson, and W. E. Moerner, "Systematics of two-wave mixing in a photorefractive polymer," J. Opt. Soc. Am. B 15, 905-913 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-2-905

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