Large extinction ratio optical electrowetting shutter | Zendy

Ryan D. Montoya | Zendy; Kenneth J. Underwood | Zendy; Soraya Terrab | Zendy; Alexander M. Watson | Zendy; Victor M. Bright | Zendy; Juliet T. Gopinath | Zendy

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Large extinction ratio optical electrowetting shutter

Author(s) -

Ryan D. Montoya,

Kenneth J. Underwood,

Soraya Terrab,

Alexander M. Watson,

Victor M. Bright,

Juliet T. Gopinath

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.009660

Subject(s) - extinction ratio , electrowetting , shutter , optics , radius of curvature , extinction (optical mineralogy) , curvature , materials science , radius , total internal reflection , optoelectronics , wavelength , physics , computer science , dielectric , mean curvature , geometry , mathematics , computer security , mean curvature flow

A large extinction ratio optical shutter has been demonstrated using electrowetting liquids. The device is based on switching between a liquid-liquid interface curvature that produces total internal reflection and one that does not. The interface radius of curvature can be tuned continuously from 9 mm at 0 V to -45 mm at 26 V. Extinction ratios from 55.8 to 66.5 dB were measured. The device shows promise for ultracold chip-scale atomic clocks.

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