Title

Optical switch based on variable aperture

Authors

Authors

H. Ren; S. Xu;S. T. Wu

Comments

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Abbreviated Journal Title

Opt. Lett.

Keywords

LIQUID LENS; DIELECTROPHORESIS; MANIPULATION; ELECTRODES; DROPLET; Optics

Abstract

We report on a pixel whose aperture can be varied electrically. The pixel is confined by a hole-patterned polymer wall and a dielectric liquid forms a ring shape around the wall surface. Without an electric field, the pixel has the largest aperture. The applied fringing field stretches the liquid surface, leading to a decrease in the aperture size. The switchable aperture ratio of the pixel is over 80% and the response time is similar to 10 ms. Such a device is useful for an optical attenuator, a light shutter, an adaptive iris, and an information display. (C) 2012 Optical Society of America

Journal Title

Optics Letters

Volume

37

Issue/Number

9

Publication Date

1-1-2012

Document Type

Article

Language

English

First Page

1421

Last Page

1423

WOS Identifier

WOS:000303662200010

ISSN

0146-9592

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