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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 20 — Oct. 4, 2004
  • pp: 4993–4998

Stable self-focused beams in a photorefractive Bi12TiO20 crystal

Evelin Weidner, Armin Kiessling, and Richard Kowarschik  »View Author Affiliations

Optics Express, Vol. 12, Issue 20, pp. 4993-4998 (2004)

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We present experimental results on the self-focusing of light beams in a photorefractive, optically active Bi12TiO20 crystal. Using circular polarization of the input HeNe laser beam we succeeded to create a stable self-focused, asymmetric light-beam over several hours. Depending on external parameters, like the external electric field and the intensity ratio, a transient symmetric state is observed.

© 2004 Optical Society of America

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

ToC Category:
Research Papers

Original Manuscript: September 3, 2004
Revised Manuscript: September 29, 2004
Published: October 4, 2004

Evelin Weidner, Armin Kiessling, and Richard Kowarschik, "Stable self-focused beams in a photorefractive Bi12TiO20 crystal," Opt. Express 12, 4993-4998 (2004)

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