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Proceedings Paper

Single-source phased array for imaging through scattering media
Author(s): Stephen P. Morgan; Chung Wah See; Michael G. Somekh
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Paper Abstract

In heavily scattering media an intensity modulated light source will propagate as a diffusive wave. This technique has been adapted for dark field operation by modulating two lasers in antiphase giving destructive interference along a line equidistant to the two sources. If an object is present in the scattering medium the symmetry is broken so that a signal will be detected along this line. This paper presents a different approach to obtaining this using a single source configured as an interferometer. The fundamental properties of the interferometer are such that conservation of energy ensures that its two arms are modulated in antiphase. The application and advantages of this approach are described.

Paper Details

Date Published: 31 January 1995
PDF: 10 pages
Proc. SPIE 2326, Photon Transport in Highly Scattering Tissue, (31 January 1995); doi: 10.1117/12.200810
Show Author Affiliations
Stephen P. Morgan, Univ. of Nottingham (United Kingdom)
Chung Wah See, Univ. of Nottingham (United Kingdom)
Michael G. Somekh, Univ. of Nottingham (United Kingdom)

Published in SPIE Proceedings Vol. 2326:
Photon Transport in Highly Scattering Tissue
Sigrid Avrillier; Britton Chance; Gerhard J. Mueller; Alexander V. Priezzhev; Valery V. Tuchin, Editor(s)

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