Ultranarrow optical beams in quadratically nonlinear media

被引：0
作者：
A. V. Pimenov
A. P. Sukhorukov
L. Torner
机构：
[1] Moscow State University,Department of Signal Theory and Communications
[2] Universitat Politecnica de Catalunya,undefined
来源：
Journal of Experimental and Theoretical Physics Letters | 2000年 / 72卷
关键词：
42.65.Tg;
D O I：
暂无
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学科分类号：
摘要：
The vector Maxwell equations for the first-and second-harmonic planar beams are solved with allowance made for the nonlinear diffraction that weakens quadratic nonlinearity. The structure of the transverse and longitudinal components of the electromagnetic field of a parametric soliton is calculated for different values of the wave vector and phase mismatch. Exact analytic expressions are obtained for the self-similar profiles of extremally narrow solitons, and it is shown that the width has a fundamental limit of the order of a wavelength in a linear medium.
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页码：495 / 498
页数：3
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