OBSERVATION OF NONHEXAGONAL LASER-BEAM PATTERNING IN A THIN LIQUID-CRYSTAL CELL IN FRONT OF A SINGLE FEEDBACK MIRROR

Authors
CIARAMELLA E TAMBURRINI M SANTAMATO E
Citation
E. Ciaramella et al., OBSERVATION OF NONHEXAGONAL LASER-BEAM PATTERNING IN A THIN LIQUID-CRYSTAL CELL IN FRONT OF A SINGLE FEEDBACK MIRROR, Applied physics letters, 64(23), 1994, pp. 3080-3082
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
23
Year of publication
1994
Pages
3080 - 3082
Database
ISI
SICI code
0003-6951(1994)64:23<3080:OONLPI>2.0.ZU;2-5
Abstract
We present here the first experimental evidence of spontaneous laser f ilamentation with patterns other than hexagons, in a thin Kerr medium placed in front of a single backreflecting mirror. In particular, we o bserved hexagons-to-rolls transition and, by proper external seeding, generation of square-like patterns.