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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. 7 — Jul. 1, 1998
  • pp: 2023–2031

Fast mutually pumped phase conjugation induced by a transient photorefractive surface wave

Erik Raita, Alexei A. Kamshilin, and Timo Jaaskelainen  »View Author Affiliations


JOSA B, Vol. 15, Issue 7, pp. 2023-2031 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002023


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Abstract

Mutually pumped phase conjugation with a recording time of few milliseconds is obtained in Bi12TiO20 crystals by use of transient photorefractive beam coupling under a dc external electric field. It is demonstrated that the additional acceleration of the positive-feedback-loop formation is required for successful generation of transient phase-conjugate wave fronts. This acceleration is provided by the high-intensity transient photorefractive surface wave that appears immediately after application of the external electric field as the result of coupling of the incident beam with the reflected fanning beams. To the authors’ knowledge, this is the first experimental observation of a transient photorefractive surface wave.

[Optical Society of America ]

OCIS Codes
(160.5320) Materials : Photorefractive materials
(190.5040) Nonlinear optics : Phase conjugation
(190.5330) Nonlinear optics : Photorefractive optics

Citation
Erik Raita, Alexei A. Kamshilin, and Timo Jaaskelainen, "Fast mutually pumped phase conjugation induced by a transient photorefractive surface wave," J. Opt. Soc. Am. B 15, 2023-2031 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-7-2023

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