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Gaussian beam without approximation
We use the angular spectrum representation to compute exactly the Gaussian beam close to the waist (w0) in the case of highly nonparaxial field (w0<λ). The computation is done in the vectorial case for a polarized Gaussian beam. In the area of the waist, the contribution of the propagating and evanescent waves is discussed. Moreover, the Gaussian wave is developed in terms of series, which permits to get analytical expressions for both propagating and evanescent waves when the observation is close to the waist.
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.
PyDDA
Discrete dipole approximation implementation in Python by Pavel Dmitriev.
Reimplementation of DDA-SI (DDA with planar surface interaction) https://code.google.com/p/dda-si/
GLMTscatt
GLMTscatt by Luiz Felipe Machado Votto GMTL-based electromagnetic field simulator
Luiz Felipe Machado Votto
jlmie
Julia implementation of Mie theory for nanophotonics by Hinamoto, Tatsuki.
ScattPy
ScattPy is an open source Python package for light scattering simulations. Its goal is to provide an easy-to-use and flexible modern framework for the numerical solving of the diffraction problems with various kinds of particles. ScattPy includes the separation of variables (SVM), extended boundary condition (EBCM) and point matching (PMM) methods.
Multi Spheres T-matrix Studio
Python wrapper for multiple sphere T-matrix (MSTM) code and Mie theory to calculate surface plasmon resonance (SPR) spectrum and fit it to experiment.
MiePy
MiePy by Jahn Parker is a Python module to solve Maxwell's equations for a cluster of particles using the generalized multiparticle Mie theory (GMMT) .
ElectromagneticScattering
A Onelab model for 3D scattering problems in nanophotonics.
PyMieSim
PyMieSim by Martin Poinsinet de Sivry-Houle is a very easy to install/use tool for extensive Mie scattering analysis. It includes a focused Gaussian beam as incident field.
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