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High-efficiency and fast-response tunable phase grating using a blue phase liquid crystal

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Abstract

We demonstrate a tunable phase grating using a polymer-stabilized blue phase liquid crystal. Because of the electric-field-induced rectangularlike phase profile, a high diffraction efficiency of 40% is achieved. Moreover, this device shows submillisecond response time. The proposed tunable phase grating holds great potential for photonics and display applications.

© 2011 Optical Society of America

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