Localized multidimensional femtosecond optical pulses in an off-resonance two-level medium

被引：62
|
作者：
Mel'nikov, IV
Mihalache, D
Panoiu, NC
机构：
[1] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia
[2] Inst Atom Phys, Dept Theoret, R-76900 Bucharest, Romania
[3] NYU, Dept Phys, New York, NY 10003 USA
来源：
OPTICS COMMUNICATIONS | 2000年 / 181卷 / 4-6期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1016/S0030-4018(00)00773-2
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The propagation of a femtosecond optical pulse in a multidimensional off-resonance two-level medium is studied. Within the quasiadiabatic following approach, the evolution of the pulse is governed by a generalized Kadomtsev-Petviashvili equation with coupling between the spatial and temporal profile. The presence of this coupling can have a dramatic influence on the dynamics of the optical pulse. Thus, one can observe effects which cannot be described within the framework of the slowly-varying envelope approximation. In particular, we show that due to the interaction between the transient diffraction and the electrodynamic absorption, stable, localized multidimensional pulses can be formed. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：345 / 351
页数：7
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