Hexagonally patterned beam filamentation in a thin liquid-crystal film with a single feedback mirror

Year: 1993

Authors: Tamburrini M., Bonavita M., Wabnitz S., Santamato E.

Autors Affiliation: Fondazione Ugo Bordoni, Via B. Castiglione 59, Roma, 00142, Italy; Dipartimento di Scienze Fisiche, Università di Napoli, Pad. 20, Mostra d’Oltremare, Napoli, 80125, Italy

Abstract: We observed spontaneous hexagon formation in the transverse profile of a continuous-wave laser beam retroreflected by a single planar mirror onto a thin film of nematic liquid crystal. We measured the dependence of the threshold intensity and the spatial period of the pattern on the film-to-mirror distance.

Journal/Review: OPTICS LETTERS

Volume: 18 (11)      Pages from: 855  to: 857

KeyWords: Films, Hexagonally patterned beam filamentation; Homeotropically aligned liquid crystal; Single feedback mirror; Thin liquid crystals, Liquid crystals
DOI: 10.1364/OL.18.000855

Citations: 100
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