Stable self-focused beams in a photorefractive Bi_12TiO_20 crystal | Zendy

E. Weidner | Zendy; A. Kießling | Zendy; R. Kowarschik | Zendy

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Stable self-focused beams in a photorefractive Bi_12TiO_20 crystal

Author(s) -

E. Weidner,

A. Kießling,

R. Kowarschik

Publication year - 2004

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/opex.12.004993

Subject(s) - photorefractive effect , optics , electric field , light beam , laser beams , polarization (electrochemistry) , materials science , organic photorefractive materials , beam (structure) , light intensity , self focusing , laser , circular polarization , optoelectronics , physics , chemistry , quantum mechanics , microstrip

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.

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