Pathlength distribution of (sub)diffusively reflected light

Dirk J. Faber; Anouk L. Post; Ton G. van Leeuwen

doi:10.1117/12.2527903

11 July 2019 Pathlength distribution of (sub)diffusively reflected light

Dirk J. Faber, Anouk L. Post, Ton G. van Leeuwen

Proceedings Volume 11074, Diffuse Optical Spectroscopy and Imaging VII; 110742K (2019) https://doi.org/10.1117/12.2527903
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

We evaluate a method to obtain the pathlength distribution of detected photons from reflectance as a function of absorption coefficient through inverse Laplace transformation using curve fitting as a noise reduction technique. We numerically validate our method using Monte Carlo simulations and exact solutions of time-resolved and steady state diffuse reflectance. Knowledge of the path length distribution may be helpful in drafting models for sub-diffuse reflectance measurements such as Single Fiber Reflectance Spectroscopy, whereas moments of the pathlength distribution (mean and variance) may provide diagnostic information by themselves.

Citation Download Citation

Dirk J. Faber, Anouk L. Post, and Ton G. van Leeuwen "Pathlength distribution of (sub)diffusively reflected light", Proc. SPIE 11074, Diffuse Optical Spectroscopy and Imaging VII, 110742K (11 July 2019); https://doi.org/10.1117/12.2527903

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KEYWORDS

Monte Carlo methods

Absorption

Reflectivity

Photons

Diffusion

Data modeling

Scattering

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