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REVERSE MONTE CARLO SIMULATIONS OF LIGHT PULSE PROPAGATION IN NONHOMOGENEOUS MEDIA - PART II: NUMERICAL SIMULATIONS

DOI: 10.1615/ICHMT.2004.RAD-4.400
8 pages

Xiaodong Lu
Mechanical and Aerospace Engineering Department, Florida Institute of Technology, Melbourne, FL 32901, USA

Pei-Feng Hsu
Mechanical and Aerospace Engineering Department, Florida Institute of Technology, USA; School of Mechanical Engineering, Shanghai Dianji University, Shanghai 201306, China

Abstract

In the Part II of this study, the reverse Monte Carlo algorithm was applied to one-dimensional, multi-layer media. The time-resolved reflectance exhibits a direct correlation between the signal magnitude and the travel time to the layer interface if the ballistic photons encounter a strongly scattering layer. Furthermore, it is found that even with a symmetric radiative property distribution in a three-layer medium, the reflectance and transmittance signals do not converge at long time when the mid-layer is optically thick. The long time slope of the temporal signal does not provide the specificity required for an inverse analysis parameter as stipulated by earlier studies.

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