Temporal and spectral properties of ultrashort pulsed Laguerre-Gaussian beams in dispersive media

被引：2
|
作者：
Zou, Qihui
Lu, Baida [1 ]
机构：
[1] Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang 330027, Peoples R China
[2] Sichuan Univ, Inst Laser Phys & Chem, Chengdu 610064, Peoples R China
来源：
OPTIK | 2007年 / 118卷 / 02期
关键词：
ultrashort pulsed Laguerre-Gaussian (LG) beam; propagation in dispersive media; temporal and spectral properties;
D O I：
10.1016/j.ijleo.2005.12.015
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The temporal and spectral properties of ultrashort pulsed Laguerre-Gaussian (LG) beams propagating in dispersive media are studied both theoretically and numerically. It is shown that the on-axis pulse broadens with increasing propagation distance and the on-axis spectrum is blueshifted. For the off-axis spectrum the blueshifts decrease and then the spectrum becomes redshifted as the radial distance increases. The propagation of ultrashort pulsed LG beams in free space and of ultrashort pulsed Gaussian beams can be regarded as special cases of our results, and some interesting properties are discussed. (c) 2006 Elsevier GrnbH. All rights reserved.
引用
收藏
页码：83 / 87
页数：5
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