Self-compression and controllable guidance of multi-millijoule femtosecond laser pulses

被引：2
|
作者：
Todorov, M. D. [2 ]
Todorova, M. E. [3 ]
Todorov, T. P. [1 ]
Koprinkov, I. G. [1 ]
机构：
[1] Tech Univ, Dept Appl Phys, Sofia 1000, Bulgaria
[2] Tech Univ, Fac Appl Math & Informat, Sofia 1000, Bulgaria
[3] Tech Univ, Integrated Tech Coll, Sofia 1000, Bulgaria
来源：
OPTICS COMMUNICATIONS | 2008年 / 281卷 / 20期
关键词：
D O I：
10.1016/j.optcom.2008.07.005
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Self-compression of multi-millijoule femtosecond laser pulses and dramatic increase of the peak intensity are found in pressurized helium and neon within a range of intensity in which the ionization modification of the material parameters by the pulse is negligible. The pulse propagation is studied by the (3 + 1)-dimensional nonlinear Schrodinger equation including basic lowest order optical processes - diffraction, second order of dispersion, and third order of nonlinearity. Smooth and well controllable pulse propagation dynamics is found. Construction of compressed pulses of controllable parameters at given space target point by a proper chose of the pulse energy and/or gas pressure is predicted. (c) 2008 Elsevier B.V. All rights reserved.
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页码：5249 / 5256
页数：8
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