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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 13, Iss. 12 — Dec. 1, 1996
  • pp: 2767–2774

Dynamics of photoinduced lens formation in a photorefractive Bi12/sub>TiO20 crystal under an external dc electric field

C. M. Gómez Sarabia, P. A. Márquez Aguilar, J. J. Sánchez Mondragón, S. I. Stepanov, and V. A. Vysloukh  »View Author Affiliations


JOSA B, Vol. 13, Issue 12, pp. 2767-2774 (1996)
http://dx.doi.org/10.1364/JOSAB.13.002767


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Abstract

We report experimental results on the dynamics of formation of a photoinduced lens produced by a two-dimensional cw He–Ne Gaussian laser beam (633 nm) in a cubic Bi12/sub>TiO20 photorefractive crystal under an external dc electric field. The main features of the effect, namely, astigmatism of the dynamic lens formed, the pulse shape of the far-field response after switching on of the focused beam, inverse linear dependence of time of its growth on the beam intensity, and approximate constancy of its peak level, are explained in the framework of the analytical model for a one-dimensional Gaussian beam and numerical calculations for a two-dimensional one.

© 1996 Optical Society of America

Citation
C. M. Gómez Sarabia, P. A. Márquez Aguilar, J. J. Sánchez Mondragón, S. I. Stepanov, and V. A. Vysloukh, "Dynamics of photoinduced lens formation in a photorefractive Bi12/sub>TiO20 crystal under an external dc electric field," J. Opt. Soc. Am. B 13, 2767-2774 (1996)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-13-12-2767

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