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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 23 — Dec. 1, 2013
  • pp: 5188–5191

Improving visibility in photoacoustic imaging using dynamic speckle illumination

Jérôme Gateau, Thomas Chaigne, Ori Katz, Sylvain Gigan, and Emmanuel Bossy  »View Author Affiliations


Optics Letters, Vol. 38, Issue 23, pp. 5188-5191 (2013)
http://dx.doi.org/10.1364/OL.38.005188


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Abstract

In high-frequency photoacoustic imaging with uniform illumination, homogeneous photoabsorbing structures may be invisible because of their large size or limited-view issues. Here we show that, by exploiting dynamic speckle illumination, it is possible to reveal features that are normally invisible with a photoacoustic system comprised of a 20 MHz linear ultrasound array. We demonstrate imaging of a 5mm absorbing cylinder and a 30 μm black thread arranged in a complex shape. The hidden structures are directly retrieved from photoacoustic images recorded for different random speckle illuminations of the phantoms by assessing the variation in the value of each pixel over the illumination patterns.

© 2013 Optical Society of America

OCIS Codes
(030.6140) Coherence and statistical optics : Speckle
(110.5120) Imaging systems : Photoacoustic imaging

ToC Category:
Imaging Systems

History
Original Manuscript: August 1, 2013
Revised Manuscript: October 21, 2013
Manuscript Accepted: November 2, 2013
Published: November 27, 2013

Virtual Issues
Vol. 9, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Jérôme Gateau, Thomas Chaigne, Ori Katz, Sylvain Gigan, and Emmanuel Bossy, "Improving visibility in photoacoustic imaging using dynamic speckle illumination," Opt. Lett. 38, 5188-5191 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-23-5188

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