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Optics Letters

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  • Vol. 36, Iss. 20 — Oct. 15, 2011
  • pp: 3975–3977

Noncontact photoacoustic imaging achieved by using a low-coherence interferometer as the acoustic detector

Yi Wang, Chunhui Li, and Ruikang K. Wang  »View Author Affiliations


Optics Letters, Vol. 36, Issue 20, pp. 3975-3977 (2011)
http://dx.doi.org/10.1364/OL.36.003975


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Abstract

We report on a noncontact photoacoustic imaging (PAI) technique in which a low-coherence interferometer [(LCI), optical coherence tomography (OCT) hardware] is utilized as the acoustic detector. A synchronization approach is used to lock the LCI system at its highly sensitive region for photoacoustic detection. The technique is experimentally verified by the imaging of a scattering phantom embedded with hairs and the blood vessels within a mouse ear in vitro. The system’s axial and lateral resolutions are evaluated at 60 and 30 μm , respectively. The experimental results indicate that PAI in a noncontact detection mode is possible with high resolution and high bandwidth. The proposed approach lends itself to a natural integration of PAI with OCT, rather than a combination of two separate and independent systems.

© 2011 Optical Society of America

OCIS Codes
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(170.5120) Medical optics and biotechnology : Photoacoustic imaging

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 1, 2011
Revised Manuscript: August 11, 2011
Manuscript Accepted: September 10, 2011
Published: October 5, 2011

Virtual Issues
Vol. 6, Iss. 11 Virtual Journal for Biomedical Optics

Citation
Yi Wang, Chunhui Li, and Ruikang K. Wang, "Noncontact photoacoustic imaging achieved by using a low-coherence interferometer as the acoustic detector," Opt. Lett. 36, 3975-3977 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-20-3975


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