Nonsinusoidal few-cycle pulsed light beams in free space

被引:88
|
作者
Porras, MA [1 ]
机构
[1] Univ Politecn Madrid, Escuela Ingn Minas, Dept Fis Aplicada, E-28003 Madrid, Spain
关键词
D O I
10.1364/JOSAB.16.001468
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We study a family of nonseparable solutions of the three-plus-one-dimensional paraxial wave equation in free space that represent ultrashort waveforms localized in time and space. We use them to develop a simple model for the spatiotemporal structure of ultrashort pulsed light beams, with only one or a few field oscillations of a nonsinusoidal nature. In the many-oscillation limit the model approaches the widely used separable models of modulated sinusoidal oscillations in time and of a Gaussian beam in space. (C) 1999 Optical Society of America [S0740-3224(99)03409-8].
引用
收藏
页码:1468 / 1474
页数:7
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