Radiation transfer model of self-trapping spatially incoherent radiation by nonlinear media

被引：91

作者：

Shkunov, VV ^{[1
]}

Anderson, DZ

机构：

[1] Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA

[2] Univ Colorado, Natl Inst Stand & Technol, Boulder, CO 80309 USA

[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[4] Russian Acad Sci, Inst Problems Mech, Moscow, Russia

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.81.2683

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We modify the radiation transfer approach, accounting for refraction, and apply this model to the analysis of propagation of spatially incoherent beams in inertial nonlinear media. For double Gaussian beams, an oscillatory regime of nonlinear diffraction is revealed. An explicit analysis of the oscillations was carried out for logarithmic saturating nonlinearity. We show that "big incoherent solitons," which possess an arbitrary transverse profile of intensity and exist for a wide class of nonlinear media, are steady state solutions of the radiation transfer equation. [S0031-9007(98)07197-X].

引用

页码：2683 / 2686

页数：4

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