Volume Integral

DDA-SI home page

AFM probe, particle and substrate; evanescent wave illumination

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 release v0.1:

http://code.google.com/p/dda-si/

Functions from the Optical Tweezers Toolbox are also required:

http://www.physics.uq.edu.au/people/nieminen/software.html

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

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