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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 10 — Oct. 2, 2009

Assessment of photon migration in scattering media using heterodyning techniques with a frequency modulated diode laser

Zuguang Guan, Patrik Lundin, and Sune Svanberg  »View Author Affiliations

Optics Express, Vol. 17, Issue 18, pp. 16291-16299 (2009)

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A novel technique for studying photon propagation in scattering media is proposed and demonstrated, as is believed, for the first time. Photons propagating through the medium, from a frequency-ramped single-mode diode laser, meet a reference beam from the same source, at a common detector, and beat frequencies corresponding to various temporal delays are observed by heterodyne techniques. Fourier transformation directly yields the temporal dispersion curve. Proof-of-principle experiments on polystyrene foam and a tissue phantom suggest, that the new method, when fully developed, may favorably compete with the more complex time-correlated single-photon counting (TCSPC) and the phase-shift methods, now much employed.

© 2009 Optical Society of America

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(170.6920) Medical optics and biotechnology : Time-resolved imaging

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: June 1, 2009
Revised Manuscript: July 17, 2009
Manuscript Accepted: July 17, 2009
Published: August 28, 2009

Virtual Issues
Vol. 4, Iss. 10 Virtual Journal for Biomedical Optics

Zuguang Guan, Patrik Lundin, and Sune Svanberg, "Assessment of photon migration in scattering media using heterodyning techniques with a frequency modulated diode laser," Opt. Express 17, 16291-16299 (2009)

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