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Optics Letters

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  • Vol. 19, Iss. 21 — Nov. 1, 1994
  • pp: 1714–1716

Compression, self-bending, and collapse of Gaussian beams in photorefractive crystals

D. N. Christodoulides and M. I. Carvalho  »View Author Affiliations


Optics Letters, Vol. 19, Issue 21, pp. 1714-1716 (1994)
http://dx.doi.org/10.1364/OL.19.001714


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Abstract

By means of an exact solution, we demonstrate that a Gaussian beam can undergo spatial compression when it traverses a photorefractive medium. This is possible provided that the external bias field exceeds the critical value necessary to establish photorefractive spatial solitons. In this regime and under paraxial assumptions our analysis indicates that a Gaussian beam tends to exhibit self-focusing collapse. Beam self-deflection effects that arise from the π/2-phase-shifted component of the photorefractive grating are also considered in our study.

© 1994 Optical Society of America

History
Original Manuscript: March 31, 1994
Published: November 1, 1994

Citation
D. N. Christodoulides and M. I. Carvalho, "Compression, self-bending, and collapse of Gaussian beams in photorefractive crystals," Opt. Lett. 19, 1714-1716 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-21-1714


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