Light scattering theories and computer codes

Abstract

In aerosol science today light scattering simulations are regarded as an indispensable tool to develop new particle characterization techniques or in solving inverse light scattering problems. Light scattering theories and related computational methods have evolved rapidly during the past decade such that scattering computations for wavelength sized nonspherical scatterers can be easily performed. This significant progress has resulted from rapid advances in computational algorithms developed in this field and from improved computer hardware. In this paper a review of the recent progress of light scattering theories and available computational programs is presented. Short outlines of the various theories is given alongside with informations on is capabilities and restrictions.

Accounting for inhomogeneous broadening in nano-optics by electromagnetic modeling based on Monte Carlo methods

“…1B). If the solution is dilute and there is little agglomeration of x-mers, the extinction spectrum of the solution can be calculated as the sum of the extinction spectra of all of the individual x-mers, which can be predicted by a variety of full-wave electromagnetic simulation techniques (30). Because the solution is dilute, any multiple scattering effects can be neglected, and the spectra can be summed incoherently (i.e., neglecting phases) because the positions and orientations the individual nanorod chains are random and constantly changing throughout the solution via thermal motion.…”

MieLab: A Software Tool to Perform Calculations on the Scattering of Electromagnetic Waves by Multilayered Spheres

“…These difficulties make the integration of flexible and robust computational techniques (software applications) essential. Thus, it is not surprising that the number of 2 International Journal of Spectroscopy existing calculation methods and computer codes related to this field is enormous [13] and continues to increase every day. Unfortunately, despite this variety, there is a marked trend (of course with some exceptions), where most of the freely available applications require not only the advanced knowledge of electromagnetism but also adequate programming skills to use them.…”

A Radiative Transfer Modeling Methodology in Gas-Liquid Multiphase Flow Simulations

“…The absorption and scattering efficiencies as well as the scattering phase function are the parameters that determine the phase radiative properties. Several state-of-the-art open-source codes [24] are available to obtain the absorption and scattering efficiencies of the dispersed media, for instance, Bohren and Huffman's Mie subroutines [25] for calculating scattering and absorption by spheres as well as T-matrix based methods [26]. However, these high fidelity models are associated with higher computational costs and it is important to ascertain the importance of determining these properties accurately in our application of interest.…”