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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Focusing through dynamic scattering media

C. Stockbridge, Y. Lu, J. Moore, S. Hoffman, R. Paxman, K. Toussaint, and T. Bifano  »View Author Affiliations


Optics Express, Vol. 20, Issue 14, pp. 15086-15092 (2012)
http://dx.doi.org/10.1364/OE.20.015086


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Abstract

We demonstrate steady-state focusing of coherent light through dynamic scattering media. The phase of an incident beam is controlled both spatially and temporally using a reflective, 1020-segment MEMS spatial light modulator, using a coordinate descent optimization technique. We achieve focal intensity enhancement of between 5 and 400 for dynamic media with speckle decorrelation time constants ranging from 0.4 seconds to 20 seconds. We show that this optimization approach combined with a fast spatial light modulator enables focusing through dynamic media. The capacity to enhance focal intensity despite transmission through dynamic scattering media could enable advancement in biological microscopy and imaging through turbid environments.

© 2012 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.3990) Optical devices : Micro-optical devices
(230.6120) Optical devices : Spatial light modulators
(290.4210) Scattering : Multiple scattering
(110.0113) Imaging systems : Imaging through turbid media

ToC Category:
Adaptive Optics

History
Original Manuscript: May 9, 2012
Revised Manuscript: June 7, 2012
Manuscript Accepted: June 7, 2012
Published: June 20, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Citation
C. Stockbridge, Y. Lu, J. Moore, S. Hoffman, R. Paxman, K. Toussaint, and T. Bifano, "Focusing through dynamic scattering media," Opt. Express 20, 15086-15092 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-20-14-15086


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