Dynamics of flexoelectric surface oscillations in a nematic liquid crystal

S. Yablonski; Mauro Rajteri; C. Oldano; Georges E. Durand

doi:10.1117/12.230642

19 January 1996 Dynamics of flexoelectric surface oscillations in a nematic liquid crystal

S. Yablonski, Mauro Rajteri, C. Oldano, Georges E. Durand

Proceedings Volume 2731, International Liquid Crystal Workshop on Surface Phenomena; (1996) https://doi.org/10.1117/12.230642
Event: International Liquid Crystal Workshop: Surface Phenomena, 1995, St. Petersburg, Russian Federation

Abstract

New dynamical aspects have been investigated in the flexoelectrically excited angular waves of a nematic liquid crystal by means of a modulation ellipsometry technique. At low frequency (f < 1 Hz) the gradient flexoelectric torque dominates and causes an out of phase electrooptical effect. At high frequency (f > 1 kHz), the surface friction is responsible for a new dynamical behavior. The surface viscosity is evaluated to be 3 (DOT) 10^-5 erg(DOT)s/cm².

Citation Download Citation

S. Yablonski, Mauro Rajteri, C. Oldano, and Georges E. Durand "Dynamics of flexoelectric surface oscillations in a nematic liquid crystal", Proc. SPIE 2731, International Liquid Crystal Workshop on Surface Phenomena, (19 January 1996); https://doi.org/10.1117/12.230642

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