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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 3, Iss. 4 — Apr. 23, 2008

Optofluidic variable aperture

Yu Hongbin, Zhou Guangya, Chau Fook Siong, and Lee Feiwen  »View Author Affiliations


Optics Letters, Vol. 33, Issue 6, pp. 548-550 (2008)
http://dx.doi.org/10.1364/OL.33.000548


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Abstract

A variable aperture has been fabricated and demonstrated using polydimethylsiloxane-based optofluidic technology. The device consists of a deformable membrane, an air pressure chamber, a cavity filled with light-absorbing liquid, and a rigid transparent upper plate. The working principle of the device is based on the deformable capability of the thin membrane structure and its resultant contact with the rigid plate. The contact area can be easily controlled by varying the air volume introduced and hence can serve as a light transmission aperture. Experimental results show that aperture diameter can be continuously changed from zero to 6.35 mm .

© 2008 Optical Society of America

OCIS Codes
(110.1220) Imaging systems : Apertures
(230.4685) Optical devices : Optical microelectromechanical devices

ToC Category:
Optical Devices

History
Original Manuscript: December 18, 2007
Revised Manuscript: February 3, 2008
Manuscript Accepted: February 5, 2008
Published: March 5, 2008

Virtual Issues
Vol. 3, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Yu Hongbin, Zhou Guangya, Chau Fook Siong, and Lee Feiwen, "Optofluidic variable aperture," Opt. Lett. 33, 548-550 (2008)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-33-6-548


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