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Published on: October 11, 2016
Monte Carlo study of coherent diffuse photon transport in a homogeneous turbid medium: a degree-of-coherence based
Seyoung Moon1, Donghyun Kim, Eunji Sim
1Program for Nanomedical Science and Technology, Yonsei University, Seoul, South Korea.
Abstract:
We employ a Monte Carlo (MC) algorithm to investigate the decoherence of diffuse photons in turbid media. For the MC simulation of coherent photons, the degree of coherence, defined as a random variable for a photon packet, is associated with a decoherence function that depends on the scattering angle and is updated as a photon interacts with a medium via scattering. Using a slab model, the effects of medium scattering properties were studied, which reveals that a linear random variable model for the degree of coherence is in better agreement with experimental results than a sinusoidal model and that decoherence is quick for the initial few scattering events followed by a slow and gradual decrease of coherence.
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