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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 72, Iss. 1 — Jan. 1, 1982
  • pp: 46–51

Asymmetric self-defocusing of an optical beam from the photorefractive effect

Jack Feinberg  »View Author Affiliations


JOSA, Vol. 72, Issue 1, pp. 46-51 (1982)
http://dx.doi.org/10.1364/JOSA.72.000046


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Abstract

A new kind of optical self-defocusing is described that in steady state is independent of optical beam power and is strongly asymmetric. The physical mechanism responsible is the photorefractive effect. We present a theory that explains the observed dependence of this self-defocusing on polarization, angle of incidence, beam size, and crystal orientation. Experimental results, using a single-domain crystal of BaTiO3, are presented that show excellent quantitative agreement with the theory. Possible device applications are discussed, including an optical diode and a low-power bistable device with permanent memory.

© 1982 Optical Society of America

Citation
Jack Feinberg, "Asymmetric self-defocusing of an optical beam from the photorefractive effect," J. Opt. Soc. Am. 72, 46-51 (1982)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-72-1-46

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