Effect of a non-scattering layer on time-resolved photon migration paths

Eiji Okada, David T. Delpy

    Research output: Contribution to journalConference articlepeer-review

    3 Citations (Scopus)


    The determination of photon migration path is important for both near infrared spectroscopy and optical imaging. Time resolved measurement enables one to restrict the volume of tissue sampled since for instance, the early detected photons in a homogeneous medium tend to have migrated along the straightest line between the source and detector. In this study the distribution of time-resolved photon migration paths in a heterogeneous scattering media which includes a non-scattering layer is investigated by Monte Carlo simulation. In a heterogeneous concentric circle model, the path distribution of the earliest detected photons lies along the boundary of the non-scattering layer whilst the distribution of photon migration paths for later arriving photons indicates penetration into deeper regions.

    Original languageEnglish
    Pages (from-to)2-9
    Number of pages8
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Publication statusPublished - 1999 Jan 1
    EventProceedings of the 1998 Photon Propagation in Tissues IV - Stockholm, SWE
    Duration: 1998 Sept 91998 Sept 11

    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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