Scattering characteristics of photon density waves from an object embedded in a spherically two-layer turbid medium

Yuqi Yao, Yao Wang, Randall L. Barbour, Harry L. Graber, Jenghwa Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present an analytic solution to the amplitude and phase distributions of photon density waves in strongly scattering, spherically symmetric, two-layer media containing a spherical object. The normal mode series method is employed to solve the inhomogeneous Helmholtz equation in spherical coordinates, with suitable boundary conditions. By comparing the total field on the surface of the outer layer when the object is present to when it is absent, we evaluate the potential sensitivity of an optical imaging system to inhomogeneities in absorption and scattering. For four types of background media which are different in their absorption and scattering properties, we determine: i) the modulation frequency that achieves an optimal compromise between signal detection reliability and sensitivity to the presence of object; ii) the minimum detectable object radius, iii) the smallest detectable change in its absorption coefficient and iv) scattering coefficient for a fixed object size. A discussion of the qualitative and quantitative findings is given.

Original languageEnglish (US)
Title of host publicationOptical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media
Subtitle of host publicationTheory, Human Studies, and Instrumentation
EditorsBritton Chance, Robert R. Alfano
PublisherSPIE
Pages291-303
Number of pages13
ISBN (Electronic)9780819417367
DOIs
StatePublished - May 30 1995
EventOptical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation - San Jose, United States
Duration: Feb 1 1995Feb 28 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2389
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherOptical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation
CountryUnited States
CitySan Jose
Period2/1/952/28/95

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Yao, Y., Wang, Y., Barbour, R. L., Graber, H. L., & Chang, J. (1995). Scattering characteristics of photon density waves from an object embedded in a spherically two-layer turbid medium. In B. Chance, & R. R. Alfano (Eds.), Optical Tomography, Photon Migration, and Spectroscopy of Tissue and Model Media: Theory, Human Studies, and Instrumentation (pp. 291-303). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2389). SPIE. https://doi.org/10.1117/12.209979