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".

引用

页码：299 / 302

页数：4

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