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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 7 — Mar. 1, 2003
  • pp: 1379–1383

High-contrast fast Fourier transform acousto-optical tomography of phantom tissues with a frequency-chirp modulation of the ultrasound

Benoît-Claude Forget, François Ramaz, Michaël Atlan, Juliette Selb, and Albert-Claude Boccara  »View Author Affiliations


Applied Optics, Vol. 42, Issue 7, pp. 1379-1383 (2003)
http://dx.doi.org/10.1364/AO.42.001379


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Abstract

We report new results on acousto-optical tomography in phantom tissues using a frequency chirp modulation and a CCD camera. This technique allows quick recording of three-dimensional images of the optical contrast with a two-dimensional scan of the ultrasound source in a plane perpendicular to the ultrasonic path. The entire optical contrast along the ultrasonic path is concurrently obtained from the capture of a film sequence at a rate of 200 Hz. This technique reduces the acquisition time, and it enhances the axial resolution and thus the contrast, which are usually poor owing to the large volume of interaction of the ultrasound perturbation.

© 2003 Optical Society of America

OCIS Codes
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.6960) Medical optics and biotechnology : Tomography
(170.7170) Medical optics and biotechnology : Ultrasound

History
Original Manuscript: July 16, 2002
Revised Manuscript: October 14, 2002
Published: March 1, 2003

Citation
Benoît-Claude Forget, François Ramaz, Michaël Atlan, Juliette Selb, and Albert-Claude Boccara, "High-contrast fast Fourier transform acousto-optical tomography of phantom tissues with a frequency-chirp modulation of the ultrasound," Appl. Opt. 42, 1379-1383 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-7-1379

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