Analytical model for diffuse reflectance in single fiber reflectance spectroscopy

Dirk J. Faber, Anouk L. Post, Henricus J.C.M. Sterenborg, Ton G. van Leeuwen

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Cancer progression leads to changing scattering properties of affected tissues. Single fiber reflectance (SFR) spectroscopy detects these changes at small spatial scales, making it a promising tool for early in situ detection. Despite its simplicity and versatility, SFR signal modeling is hugely complicated so that, presently, only approximate models exist. We use a classic approach from geometrical probability to derive accurate analytical expressions for diffuse reflectance in SFR that shows a strong improvement over existing models. We consider the case of limited collection efficiency and the presence of absorption. A Monte Carlo light transport study demonstrates that we adequately describe the contribution of diffuse reflectance to the SFR signal. Additional steps are required to include semi-ballistic, non-diffuse reflectance also present in the SFR measurement.
Original languageEnglish
Pages (from-to)2078-2081
JournalOptics Letters
Volume45
Issue number7
DOIs
Publication statusPublished - 1 Apr 2020
Externally publishedYes

Funding

Nederlandse Organisatie voor Wetenschappelijk Onderzoek (12707).

FundersFunder number
Nederlandse Organisatie voor Wetenschappelijk Onderzoek12707

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