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Proceedings Paper

Detection of pulsed absorber using phase modulation spectroscopy
Author(s): Kyung A. Kang; Britton Chance; Duane F. Bruley
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Paper Abstract

Characteristics of a system of interest can be analyzed by studying the system response to a particular input. NIR spectroscopy frequently uses an impulse (time resolved spectroscopy, TRS) and a sinusoidally modulated wave input (phase modulated spectroscopy, PMS). In this paper, we describe the theoretical principle of phase change in PMS measurement due to the heterogeneity. The phase change in a dynamic system is studied experimentally by using an experimental model and simple physiological systems.

Paper Details

Date Published: 14 September 1993
PDF: 12 pages
Proc. SPIE 1888, Photon Migration and Imaging in Random Media and Tissues, (14 September 1993); doi: 10.1117/12.154638
Show Author Affiliations
Kyung A. Kang, Univ. of Pennsylvania School of Medicine (United States)
Britton Chance, Univ. of Pennsylvania School of Medicine (United States)
Duane F. Bruley, Univ. of Maryland/Baltimore County (United States)


Published in SPIE Proceedings Vol. 1888:
Photon Migration and Imaging in Random Media and Tissues
Britton Chance; Robert R. Alfano, Editor(s)

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