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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. 8, Iss. 3 — Apr. 4, 2013

Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light

Max Lesaffre, Salma Farahi, François Ramaz, and Michel Gross  »View Author Affiliations


Applied Optics, Vol. 52, Issue 5, pp. 949-957 (2013)
http://dx.doi.org/10.1364/AO.52.000949


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Abstract

Acousto-optical coherence tomography (AOCT) is a variant of acousto-optic imaging (also called ultrasound modulated optical tomography) that makes possible to get resolution along the ultrasound propagation axis z. We present here AOCT experimental results, and we study how the z resolution depends on time step between phase jumps Tϕ, or on the correlation length Δz. By working at low resolution, we perform a quantitative comparison of the z measurements with the theoretical point spread function. We also present images recorded with different z resolution, and we qualitatively show how the image quality varies with Tϕ, or Δz.

© 2013 Optical Society of America

OCIS Codes
(110.7050) Imaging systems : Turbid media
(110.7170) Imaging systems : Ultrasound
(160.5320) Materials : Photorefractive materials
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.3880) Medical optics and biotechnology : Medical and biological imaging

ToC Category:
Imaging Systems

History
Original Manuscript: October 20, 2012
Revised Manuscript: October 24, 2012
Manuscript Accepted: December 12, 2012
Published: February 7, 2013

Virtual Issues
Vol. 8, Iss. 3 Virtual Journal for Biomedical Optics

Citation
Max Lesaffre, Salma Farahi, François Ramaz, and Michel Gross, "Experimental study of z resolution in acousto-optical coherence tomography using random phase jumps on ultrasound and light," Appl. Opt. 52, 949-957 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-5-949

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