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Thermomechanical effects in uniformly aligned dye-doped nematic liquid crystals

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Abstract.

We show theoretically that thermomechanical effects in dye-doped nematic liquid crystals when illuminated by laser beams, can become important and lead to molecular reorientation at intensities substantially lower than that needed for optical Fréedericksz transition. We propose a 1D model that assumes homogenous intensity distribution in the plane of the layer and is capable to describe such a thermally induced threshold lowering. We consider a particular geometry, with a linearly polarized light incident perpendicularly on a layer of homeotropically aligned dye-doped nematics.

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Authors and Affiliations

  1. Theoretische Physik, Universitaet Tuebingen, 72076, Tuebingen, Germany

    D. O. Krimer

  2. Institut Non Linéaire de Nice, 1361 route des Lucioles, 06560, Valbonne, France

    S. Residori

Authors
  1. D. O. Krimer
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  2. S. Residori
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Correspondence to D. O. Krimer.

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Krimer, D.O., Residori, S. Thermomechanical effects in uniformly aligned dye-doped nematic liquid crystals. Eur. Phys. J. E 23, 77–82 (2007). https://doi.org/10.1140/epje/i2006-10081-5

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  • DOI: https://doi.org/10.1140/epje/i2006-10081-5

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