Numerical model of the inhomogeneous scattering by the human lens

Abstract

We present in this work a numerical model for characterizing the scattering properties of the human lens. After analyzing the scattering properties of two main scattering particles actually described in the literature through FEM (finite element method) simulations, we have modified a Monte Carlo's bulk scattering algorithm for computing ray scattering in non-sequential ray tracing. We have implemented this ray scattering algorithm in a layered model of the human lens in order to calculate the scattering properties of the whole lens. We have tested our algorithm by simulating the classic experiment carried out by Van der Berg et al for measuring "in vitro" the angular distribution of forward scattered light by the human lens. The results show the ability of our model to simulate accurately the scattering properties of the human lens.

Enabling selective absorption in perovskite solar cells for refractometric sensing of gases

“…In our calculation, we have considered the gases as non-absorptive (meaning a negligible value of the imaginary part of the index of refraction). We have also neglected the contribution of scattering, but this simplification should be raised if nano-and micrometer size particles were taken into account 63 . In Fig.…”