Self-action of laser radiation under the conditions of electromagnetically induced transparency

被引：0
|
作者：
N. A. Zharova
A. G. Litvak
V. A. Mironov
机构：
[1] Russian Academy of Sciences,Institute of Applied Physics
来源：
Journal of Experimental and Theoretical Physics Letters | 2004年 / 79卷
关键词：
42.50.Gy; 42.65.Jx;
D O I：
暂无
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学科分类号：
摘要：
The laser-radiation self-action dynamics in the electromagnetically induced transparency band were studied analytically and numerically for an atomic gas with the Λ-type energy-level scheme. The self-consistent system of equations describing the spatiotemporal evolution of a finite-amplitude wave packet in the field of a uniform pump wave was derived. The self-action in the presence of competing diffraction, nonlinear dispersion, and radiation absorption in the system was qualitatively analyzed; in particular, the conditions for self-focusing of a probe beam were determined. The results were confirmed by the numerical simulation of wave-packet spatiotemporal evolution.
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页码：272 / 276
页数：4
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