Photodynamical Effects Induced by Laser Radiation in a Nematic Liquid Crystal

Giancarlo Abbate Dipartimento di Scienze Fisiche, Università di Napoli Pad., 20 Mostra d'Oltremare, 80125, Napoli, Italy

Pasqualino Maddalena Dipartimento di Scienze Fisiche, Università di Napoli Pad., 20 Mostra d'Oltremare, 80125, Napoli, Italy

Lorenzo Marrucci Dipartimento di Scienze Fisiche, Università di Napoli Pad., 20 Mostra d'Oltremare, 80125, Napoli, Italy

Enrico Santamato Dipartimento di Scienze Fisiche, Università di Napoli Pad., 20 Mostra d'Oltremare, 80125, Napoli, Italy

Yuen Ron Shen Department of Physics, University of California, Berkeley, California, 94720, USA

Abstract

The observation of a very rich reorientational dynamics of the molecular director of a nematic liquid crystal film, induced by an elliptically polarized cw laser beam, is reported. Despite of the complicated laser-induced motions, a simple model, based on angular momentum conservation reproduces fairly well the experimental findings.

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Photodynamical Effects Induced by Laser Radiation in a Nematic Liquid Crystal

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Photodynamical Effects Induced by Laser Radiation in a Nematic Liquid Crystal

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