INDUCED FOCUSING OF OPTICAL BEAMS IN SELF-DEFOCUSING NONLINEAR MEDIA

被引：104
|
作者：
AGRAWAL, GP
机构：
[1] Institute of Optics, University of Rochester, Rochester
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.64.2487
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The novel phenomenon of induced focusing occurring in a self-defocusing nonlinear medium is discussed theoretically. Induced focusing of a weak optical beam occurs when it copropagates with an intense pump beam whose intensity peaks at a place different from that of the weak beam. The physical mechanism behind induced focusing is cross-phase modulation that couples the two beams. The conditions under which induced focusing can occur are discussed by solving numerically the coupled amplitude equations which incorporate the effects of diffraction, self-phase modulation, and cross-phase modulation. © 1990 The American Physical Society.
引用
收藏
页码：2487 / 2490
页数：4
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