02 | 06 | 2023


Python wrapper for Multiple Sphere T-Matrix (MSTM) code for the calculation of extinction spectra of nanoparticle aggregates.

Wave Scattering Toolbox

TMATROM is a simple and easy to use reduced order model toolbox for simulating 2D wave propagation, acoustic and electromagnetic waves, wave propagation exterior to one or more scatterers; sound soft/sound hard/ transverse electric (TE)/ transverse magnetic (TM)/ absorbing/ dielectric scatterers; low, medium and high frequencies

  • Link (30 Nov 2017)


The Julia package `TransitionMatrices.jl` by Zihua Wu implements the classic EBCM method, supporting arbitrary precision and automatic differentiation. To calculate the T-Matrix of various types of scatterers the EBCM and the Invariant Imbedding T-Matrix Method (IITM) is implemented.

  • Link (14 April 2023)


SMUTHI by Amos Egel solves 3D light scattering problems involving one or multiple particles (spheres, spheroids and finite cylinders) inside a planarly layered medium. It is based on the T-matrix method for the individual particles and on the scattering-matrix method for the propagation through the layered medium. For spheroids and finite cylinders, the particles' T-matrices are computed using the NFM-DS package by Adrian Doicu, Thomas Wriedt and Yuri Eremin.



Scattering Dynamics

scadyn is a code for scattering dynamics calculations, which utilizes a volume integral equation solution to compute the T-matrices of non-spherical scatterers (T-VIE) .

  • Link (14 April 2023)

PyTMatrix, by Jussi Leinonen, A Python code for computing the scattering properties of homogeneous nonspherical scatterers with the T-Matrix method.


An open-source C++-based Python library CosTuuM that can be used to generate infrared absorption and emission coefficients for arbitrary mixtures of spheroidal dust grains that are (partially) aligned with a magnetic field.

  • Link (23 March 2023)

A java app of Mackwoski and Mishchenko's Superposition T-matrix code for studying the light scattering properties of cosmic dust aggregates. The Java Superposition T-matrix App (JaSTA) software package consists of a Graphical User Interface (GUI) in the front hand and a database of related data’s in the back hand. JaSTA provides a unique and very much user friendly GUI that guides the user at each and every step. It is freely downloadble.


T-matrix for Electromagnetic Radiation with Multiple Scatterers — a set of Fortran modules/routines and Python scripts for T-matrix-based calculations and analysis of light scattering by clusters of individual scatterers.



T matrix code for scattering by homogeneous particles with discrete symmetries by Michael Kahnert. For particle morphologies with geometric symmetries, the code makes use of group theory to systematically simplify the numerical solution to Maxwell's equations.

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