Fast-switching phase gratings using in-plane addressed short-pitch polymer stabilized chiral nematic liquid crystals | Zendy

Stephen Morris | Zendy; Damian J. Gardiner | Zendy; Flynn Castles | Zendy; Philip J.W. Hands | Zendy; Timothy D. Wilkinson | Zendy; Harry J. Coles | Zendy

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Fast-switching phase gratings using in-plane addressed short-pitch polymer stabilized chiral nematic liquid crystals

Author(s) -

Stephen Morris,

Damian J. Gardiner,

Flynn Castles,

Philip J.W. Hands,

Timothy D. Wilkinson,

Harry J. Coles

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3670041

Subject(s) - liquid crystal , electric field , materials science , diffraction , optics , phase (matter) , polymer , diffraction grating , millisecond , diffraction efficiency , grating , optoelectronics , physics , composite material , quantum mechanics , astronomy

We demonstrate a fast-switching (sub-millisecond) phase grating based upon a polymer stabilized short-pitch chiral nematic liquid crystal that is electrically addressed using in-plane electric fields. The combination of the short-pitch and the polymer stabilization enables the diffraction pattern to be switched “on” and “off” reversibly in 600 µs. Results are presented on the far-field diffraction pattern along with the intensity of the diffraction orders as a function of the applied electric field and the response times.

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