Method to determine the concentrations of constituents in a bidisperse turbid medium using Monte Carlo simulation for mixtures

Light scattering techniques are often used to characterize the particles suspended in a turbid medium, and Monte Carlo simulations are an important part of many such methodologies. In this work, we use the Monte Carlo method to simulate the propagation of light in a turbid mixture, that comprises of different types of particles, and obtain the relevant probability distributions, which are found to be consistent with the works reported in the literature. The simulation model is used to propose a recipe which requires a single measurement of the scattered power and the transmitted power, to determine the concentrations of constituent particles in a bidisperse mixture. The method is experimentally validated for turbid mixtures of polystyrene spheres, and found to be accurate within the limits of experimental error. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement