Document Type

Article

Publication Date

5-2-2016

Publication Title

Optics Express

ISSN

1094-4087

Volume

24

Issue

9

First Page

9660

Last Page

9666

DOI

https://doi.org/10.1364/OE.24.009660

PubMed ID

27137579

Abstract

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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