Numerical simulation of the electromagnetic wave reflection from 2D random semi-infinite strongly scattering media

Abstract

Light scattering in disordered media plays an important role in several areas of applied science from biophysics to astronomy. In this paper using a two-dimensional system as an example we study approaches to calculate the scattering properties of semi-infinite densely packed media with high contrast and wavelength scale inhomogeneities. We develop two methods by combining the Fourier Modal Method and the super-cell approach. Our work demonstrates the ability to obtain ensemble averaged solutions to the Maxwell's equations in complex media, while the demonstrated numerical convergence on the size parameters of the system supports the consistency of the approaches considered.

Keywords:

• Electromagnetic scattering
• random media
• multiple scattering
• Fourier Modal Method
• super-cell
• artificial periodicity

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Russian Science Foundation, gr. No. 22-11-00153.