Surfactant enhanced reorientation in dye-doped nematic liquid crystals

Author： Petrossian A.   Residori S.  

Publisher： Edp Sciences

E-ISSN： 1286-4854|60|1|79-85

ISSN： 0295-5075

Source： EPL (EUROPHYSICS LETTERS), Vol.60, Iss.1, 2010-03, pp. : 79-85

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Abstract

We show that a large nonlinearity in dye-doped liquid crystals is obtained for extremely low input light intensity, of the order of a few tens of $\mu \un{W/cm}^2$ and that it is mediated by the action of the photo-induced voltage on the specific surface coupling agent.

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