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

Guan, Zuguang (author)
Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Lundin, Patrik (author)
Svanberg, Sune (author)
Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
 (creator_code:org_t)
2009
2009
English.
In: Optics Express. - 1094-4087. ; 17:18, s. 16291-16299
  • Journal article (peer-reviewed)
Abstract Subject headings
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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.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

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Guan, Zuguang
Lundin, Patrik
Svanberg, Sune
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NATURAL SCIENCES
NATURAL SCIENCES
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and Atom and Molecul ...
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Optics Express
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Lund University

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