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

页码：5955 / 5958

页数：4

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