First-Order Freedericksz transition in a Liquid-Crystal Light Valve

Details First-Order Freedericksz transition in a Liquid-Crystal Light Valve First-Order Freedericksz transition in a Liquid-Crystal Light Valve

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..622..393c&link_type=abstract

EXPERIMENTAL CHAOS: 6th Experimental Chaos Conference, Proceedings of a conference held in Potsdam, Germany, 22-25 July 2001. Ed

Physics

Electro-Optical Effect, Feedback, Light Valves, Liquid Crystals, Nucleation, Phase Transformations, Stability, Transitions In Liquid Crystals, Orientational Order Of Liquid Crystals, Electric And Magnetic Field Effects On Order, Electrooptical Effects

Scientific paper

Light feedback in a Liquid-Crystal-light-Valve can render the Freedericksz transition a first order one. A theoretical and experimental study of this first order transition is presented. An amplitude equation is derived, valid close to the transition. Depending on the values of the feedback parameters, both theory and experiment exhibit bistability, propagation of fronts and a Maxwell point.

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