On the diffraction of ultrashort pulses

被引：5
|
作者：
Rozanov, NN [1 ]
机构：
[1] Res Inst Laser Phys, St Petersburg 199034, Russia
[2] Tech Univ, St Petersburg State Inst Fine Mech & Opt, St Petersburg 197101, Russia
来源：
OPTICS AND SPECTROSCOPY | 2003年 / 95卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
Electromagnetic wave diffraction - Electromagnetic waves - Fourier optics - Light reflection - Refractive index;
D O I：
10.1134/1.1604439
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The diffraction of ultrashort pulses of electromagnetic radiation is considered in terms of the model of an initial Gaussian time pulse and a Gaussian beam. A criterion for the short pulse duration and the average pulse wavelength are introduced, and the diffraction length and angular divergence of radiation are estimated. Alone, with the general expression for a field, simple expressions for the case of the far zone are derived. The results obtained are compared with the simplified delta pulse model. (C) 2003 MAIK "Nauka/Interperiodica".
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页码：299 / 302
页数：4
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