Autor:	N. I. Nazhestkina, R. V. Litvinov, M. V. Borodin, Stanislav M. Shandarov
Rok vydání:	2001
Předmět:	Physics Beam diameter Field (physics) business.industry General Physics and Astronomy Optics Electric field Physics::Accelerator Physics Light beam M squared Laser beam quality business Light field Beam (structure)
Zdroj:	Russian Physics Journal. 44:1050-1054
ISSN:	1064-8887
Popis:	The self-action effects of a light beam propagating in a cubic photorefractive crystal in a square-wave electric field are studied. It is demonstrated that the dark conductivity of the crystal or its illumination by noncoherent radiation distorts the beam profile with the initial Gaussian intensity distribution. The results of investigations into the influence of the nonlinearity of the space-charge field formation on self-bending of the beam trajectory are presented. It is demonstrated that the evolution of modulation instability in the light field distribution over the beam cross section depends on the initial beam profile, its asymmetry, and the direction of bending caused by the inhomogeneity of induced refractive-index changes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c2c9c902d1c943ab6e64be7d3694e3b8 https://doi.org/10.1023/a:1015071410641 Zobrazit plný text záznamu Full text from SpringerLink