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This article is cited in 4 scientific papers (total in 4 papers)
Interaction of laser radiation with matter. Laser plasma
Excitation of convective motions and surface hydrodynamic soliton-type waves in liquid crystals by a Gaussian laser beam
R. S. Akopyan, R. B. Alaverdyan, A. G. Arakelyan, S. Ts. Nersisyan, Yu. S. Chilingaryan Faculty of Physics, Yerevan State University
Abstract:
The possibility of exciting convective motions with a toroidal symmetry in a disordered liquid-crystal cell with an open surface, which is locally heated by a Gaussian laser beam, is demonstrated experimentally. A perturbation of the free surface of the liquid crystal and a convective hydrodynamic motion are determined by temperature gradients. It is shown that a radial distribution of the director of a nematic liquid crystal appears in the convection region. Under certain experimental conditions, soliton-type hydrodynamic orientation waves are observed at the free surface of a nematic liquid crystal. It is found experimentally that the velocity of these waves is determined solely by the liquid-crystal parameters and is independent of the incident laser-radiation power.
Received: 28.05.2003 Revised: 26.08.2003
Citation:
R. S. Akopyan, R. B. Alaverdyan, A. G. Arakelyan, S. Ts. Nersisyan, Yu. S. Chilingaryan, “Excitation of convective motions and surface hydrodynamic soliton-type waves in liquid crystals by a Gaussian laser beam”, Kvantovaya Elektronika, 34:3 (2004), 267–271 [Quantum Electron., 34:3 (2004), 267–271]
Linking options:
https://www.mathnet.ru/eng/qe2625 https://www.mathnet.ru/eng/qe/v34/i3/p267
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