Fortran program for bistatic scattering by single spheroidal particle available by contacting

Dr. Wei Zhang, Helsinki University of Technology, Institute of Radio Communications, Radio Laboratory, Otakaari 5A, FIN 02150 Espoo, Finland

• Tel.: +358 0 451 2255,
• Fax: +358 0 451 2152,
• Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

mstm-spectrum

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

• Link (3 May 2023)

Reports on the T-Matrix Method by Bo Peterson dated 1973, 1974 and 1975, Institut of Theoretical Physiks, Fack, Göteborg, Sweden

The zip-file includes Fortran code. 

• report a (!6 Sept 2025)
• report b
• report c
• report d
• Fortran code

TransitionMatrices.jl

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)

The transition matrix method, or T-Matrix method, is one of the most powerful and widely used tools for rigorously computing electromagnetic scattering by single and compounded particles.

Homogeneous axisymmetric shapes (via EBCM and IITM): Spheroids, Cylinders, Chebyshev particles. Arbitrary shapes (via IITM): Prisms

• Link (28 Aug 2025)

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)

Python module to calculate scattering amplitude and phase matrices of rotationally symmetric particles based on the T-matrix method. Based on the original Fortran T-matrix code by M.I. Mishchenko.

• Link (24 Aug 2025)

CosTuuM 

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)

VGF-Scattering-Code is Fortran code for scattering by 3D particles based on the Variational Greens Function.

• Link (25 Aug 2024)

TERMS

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.

• Link (22 Apr 2021)
• Users guide (2 Feb 2022)