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Title
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Rayleigh–Benard Convection in the homeotropic nematic liquid crystal by a Gaussian laser beam absorption
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Type
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JournalPaper
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Keywords
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Liquid crystals Rayleigh–Benard Convection Optical nonlinearity
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Abstract
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The Rayleigh–Benard Convection (RBC) were studied theoretically in the homeotropic nematic liquid crystal (NLC) cell due to the absorption of a normally incident Gaussian light beam from upper side of the cell. It was shown that a convection of hydrodynamic motion in the NLC can be induced and eventually the molecular director coupling with hydrodynamics reorients the director. An external magnetic field parallel to the director decreases the director reorientation and the radial flow velocity, while the velocity in the z direction is unaffected. The results were found to be in a range that can easily be checked experimentally
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Researchers
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Mostafa Sahrai (Fourth Researcher), Arash Phirouznia (Third Researcher), Mohammad Asadpour (Second Researcher), Jafar Poursamad Bonab (First Researcher)
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