Analysis of Light Propagation in Highly Scattering Media by Path-Length-Assigned Monte Carlo Simulations

作者：Ishii Katsuhiro^*; Nishidate Izumi; Iwai Toshiaki

来源：Optical Review, 2014, 21(3): 210-214.

DOI：10.1007/s10043-014-0030-0

• Monte Carlo simulation
• multiple scattering
• optical coherence tomography
• diffuse photons
• snake photons

Numerical analysis of optical propagation in highly scattering media is investigated when light is normally incident to the surface and re-emerges backward from the same point. This situation corresponds to practical light scattering setups, such as in optical coherence tomography. The simulation uses the path-length-assigned Monte Carlo method based on an ellipsoidal algorithm. The spatial distribution of the scattered light is determined and the dependence of its width and penetration depth on the path-length is found. The backscattered light is classified into three types, in which ballistic, snake, and diffuse photons are dominant.

• 出版日期2014-5