The DDA-SI toolbox for MATLAB:
1) Standard DDA for free space light scattering calculations
2) DDA with surface interaction (DDA-SI)
3) Discrete rotational symmetry-optimized DDA, T-matrix formulation (not include in release v0.1)
Download link for beta releases,
v0.1: http://code.google.com/p/dda-si/
v0.2: https://github.com/dalerxli/dda-si
Functions from the Optical Tweezers Toolbox may be required: https://au.mathworks.com/matlabcentral/fileexchange/73541-ott-optical-tweezers-toolbox
The functions are for coordinate transformation, generating beam shape coefficients for arbitrary illumination, vector spherical wave functions etc.
Please cite the accompanying paper:
Vincent. L.Y. Loke, M. Pinar Mengüç and Timo A. Nieminen, "Discrete dipole approximation with surface interaction: Computational toolbox for MATLAB", JQSRT, Vol. 27 Issue 10, pp.2293-2303 (2010), http://dx.doi.org/10.1016/j.jqsrt.2011.03.012
Associated theoretical paper for reference:
Vincent. L.Y. Loke and M. Pinar Mengüç, "Surface waves and atomic force microscope probe-particle near-field coupling: discrete dipole approximation with surface interaction", JOSA A, Vol. 27 Issue 10, pp.2293-2303 (2010), http://www.opticsinfobase.org/spotlight/summary.cfm?URI=josaa-27-10-2293
Book chapter:
Light, Plasmonics and Particles - Nanophotonics, Chapter 10 - Discrete dipole approximation with surface interaction, https://doi.org/10.1016/B978-0-323-99901-4.00018-4
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