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Volume 25 Issue 4
Sep.  2013
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Study on laser induced molecular reorientation in nematic liquid crystals

  • 1.

    Department of Mathematics and Physics, Huainan Institute of Technology, Huainan, 232001

  • Received Date: 2000-09-22
  • The approximate formula of the laser induced molecular reorientation angle,refractive index change,threshed field strength and rise time in nematic liquid crystal are obtained by means of the hydrodynamic equation of liquid crystal molecule motion.The dependence of the above parameters on the liquid crystal material parameters,laser intensity and its propagation inside liquid crystal is discussed and calculated.The essential condition which laser can induce molecular reorientation in nematic liquid crystal is given.The essential cause of molecular reorientation in nematic liquid crystal is anisotropy of its molecules have been obtained.
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    Khoo I C,Shen Y R.Opt Engng,1985:24(4):579～585
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    Khoo I C,Yan P Y,Liu T H et al.Phys Rev A,1984:29(25):2756～2764
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    Hsiung H,Shi L P,Shen Y R.Phys Rev A,1984:30(3):1453～1460
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    Khoo I C,Michael R R,Yan P Y.IEEE J Q E,1987:23(2):267～272
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    de Gennes P G.The physics of liquid crystals.Oxford,England:Clarendon,1974
    [6]

    Khoo I C,Hou J Y,Din G L et al.Phys Rev A,1990:42(2):1001～1004
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study on laser induced molecular reorientation in nematic liquid crystals

  • 1. Department of Mathematics and Physics, Huainan Institute of Technology, Huainan, 232001
  • Received Date: 2000-09-22
  • Available Online: 2001-07-25

Abstract: The approximate formula of the laser induced molecular reorientation angle,refractive index change,threshed field strength and rise time in nematic liquid crystal are obtained by means of the hydrodynamic equation of liquid crystal molecule motion.The dependence of the above parameters on the liquid crystal material parameters,laser intensity and its propagation inside liquid crystal is discussed and calculated.The essential condition which laser can induce molecular reorientation in nematic liquid crystal is given.The essential cause of molecular reorientation in nematic liquid crystal is anisotropy of its molecules have been obtained.

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