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JOURNALS // Kvantovaya Elektronika // Archive

Kvantovaya Elektronika, 2003 Volume 33, Number 5, Pages 446–450 (Mi qe2432)

This article is cited in 10 papers

Nonlinear optical phenomena

Effect of optical activity on the self-focusing of light beams in cubic photorefractive crystals

V. V. Shepelevicha, R. Kovarshikb, A. Kislingb, V. Matusevichb, A. A. Goluba

a Mozyr State Teacher's Training University
b Friedrich-Schiller-Universität Jena, Germany

Abstract: The self-focusing of Gaussian light beams and the propagation of screening spatial solitons in a cubic optically active photorefractive crystal with the ($\bar1\bar10$) cut plane are studied for an arbitrary orientation of an external electric field in this plane. A change in the rotation of the polarisation plane caused by the nonlinear interaction of light with the crystal is studied theoretically. It is shown that optical activity enhances self-focusing in some cases. Screening self-focusing was observed in an incoherently illuminated $Bi_{12}SiO_{20}$ crystal without additional laser irradiation. The experimental data well agree with the proposed theoretical model.

PACS: 42.65.Jx, 42.65.Hw, 42.70.Mp

Received: 13.09.2002


 English version:
Quantum Electronics, 2003, 33:5, 446–450

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© Steklov Math. Inst. of RAS, 2025