Spontaneous formation of hexagons, squares and squeezed hexagons in a photorefractive phase conjugator with virtually internal feedback mirror

被引：26

作者：

Honda, T ^{[1
]}

Matsumoto, H ^{[1
]}

Sedlatschek, M ^{[1
]}

Denz, C ^{[1
]}

Tschudi, T ^{[1
]}

机构：

[1] TH DARMSTADT,INST ANGEW PHYS LICHT & TEILCHENOPT,D-64289 DARMSTADT,GERMANY

来源：

OPTICS COMMUNICATIONS | 1997年 / 133卷 / 1-6期

关键词：

phase conjugator; photorefractive; spontaneous pattern formation; hexagons;

D O I：

10.1016/S0030-4018(96)00434-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spontaneous formation of optical patterns is studied in a system composed of a photorefractive phase-conjugating medium and a virtually internal feedback minor, In addition to ordinary regular hexagons, squares and squeezed hexagons are reported for the first time in optical pattern formation experiments, The angle of the generated sideband beams plotted as a function of the mirror position lies on two different curves, which can theoretically be explained by the contributions from two different regions of the medium separated by the virtual feedback mirror.

引用

页码：293 / 299

页数：7

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