Molecular Crystals and Liquid Crystals Incorporating Nonlinear Optics · 1990 · 184 citations · 7 references
Natural SciencesPhysicsCondensed Matter PhysicsOptical MaterialsOpticsLiquid Crystal MaterialsLiquid CrystalsOptical Properties Of MaterialsOptical Properties Of SolidsOptical Thin FilmsThin Film Optical PropertiesLiquid Crystal Phase TransitionsNematic Liquid CrystalsOptical AbsorptionOptical TransitionsThermomechanical Coupling
Abstract Laser-induced reorientation was studied in absorbing nematic films. The optical Freedericksz threshold occured at an intensity level of 50 W/cm2 in contrast to the normally observed few KW/cm2 value for transparent layers. Thermomechanical coupling is considered as a possible explanation of the observed anomaly.
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