OPTISCHE UND ELEKTRO‐OPTISCHB SCHALTPROZESSB IN POLYMEREN FLÜSSIGKRISTALLEN

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Abstract
Low molar mass and polymeric liquid crystals display extremely large electro‐optical and nonlinear optical responses, due to a combination of orientational long range order and fluidity. These responses are controlled on the one hand by the intrinsic anisotropic dielectric and optical properties of these phases and on the other hand by their peculiar curvature elastic and viscous properties.Polymeric liquid crystals, although having the disadvantage of longer response times, offer the advantage that the liquid crystalline state and any modulation imposed on it can be frozen in a glassy state. Polymeric liquid crystals can thus be used in various applications related to the control of light propagation, optical information storage and the manufacturing of holographic optical elements.

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