2-DIMENSIONAL OPTICAL LATTICES IN A CO2-LASER

被引：102
|
作者：
DANGOISSE, D
HENNEQUIN, D
LEPERS, C
LOUVERGNEAUX, E
GLORIEUX, P
机构：
[1] Laboratoire de Spectroscopie Hertzienne, Université des Sciences et Technologies de Lille, F.59655 Villeneuve d'Ascq Cedex
来源：
PHYSICAL REVIEW A | 1992年 / 46卷 / 09期
关键词：
D O I：
10.1103/PhysRevA.46.5955
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using a cavity with a large Fresnel number, a nontrivial large-scale order resulting from global multimode-interaction dynamics is found in the transverse structure of a CO2 laser beam. Two-dimensional optical lattices displaying several hundred phase singularities each have been observed. The symmetry properties of these far-field patterns and their associate temporal spectra are studied as a function of two control parameters: the Fresnel number and the transverse intermode spacing.
引用
收藏
页码：5955 / 5958
页数：4
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