Discrete dipole approximation in time domain through the Laplace transform

Publisher:
American Physical Society
Publication Type:
Journal article
Citation:
Chaumet, Patrick et al. 2013, 'Discrete dipole approximation in time domain through the Laplace transform', Physical Review E, vol. 88, pp. 063303-1-063303-8.
Issue Date:
2013
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We present a form of the discrete dipole approximation for electromagnetic scattering computations in time domain. We show that the introduction of complex frequencies, through the Laplace transform, significantly improves the computation time. We also show that the Laplace transform and its inverse can be combined to extract the field inside a scatterer at a real resonance frequency
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