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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 9 — May. 1, 2012
  • pp: 1421–1423

Optical switch based on variable aperture

Hongwen Ren, Su Xu, and Shin-Tson Wu  »View Author Affiliations


Optics Letters, Vol. 37, Issue 9, pp. 1421-1423 (2012)
http://dx.doi.org/10.1364/OL.37.001421


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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 10ms. Such a device is useful for an optical attenuator, a light shutter, an adaptive iris, and an information display.

© 2012 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(160.3710) Materials : Liquid crystals
(230.2090) Optical devices : Electro-optical devices
(350.3950) Other areas of optics : Micro-optics

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: January 30, 2012
Revised Manuscript: February 21, 2012
Manuscript Accepted: March 1, 2012
Published: April 19, 2012

Citation
Hongwen Ren, Su Xu, and Shin-Tson Wu, "Optical switch based on variable aperture," Opt. Lett. 37, 1421-1423 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-9-1421


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References

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