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Fast near field calculations in the discrete dipole approximation for regular rectilinear grids

Author(s): Flatau, PJ; Draine, Bruce T.

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Abstract: A near-field calculation of light electric field intensity inside and in the vicinity of a scattering particle is discussed in the discrete dipole approximation. A fast algorithm is presented for gridded data. This algorithm is based on one matrix times vector multiplication performed with the three dimensional fast Fourier transform. It is shown that for moderate and large light scattering near field calculations the computer time required is reduced in comparison to some of the other methods. (C) 2012 Optical Society of America
Publication Date: 16-Jan-2012
Electronic Publication Date: 5-Jan-2012
Citation: Flatau, PJ, Draine, BT. (2012). Fast near field calculations in the discrete dipole approximation for regular rectilinear grids. OPTICS EXPRESS, 20 (1247 - 1252. doi:10.1364/OE.20.001247
DOI: doi:10.1364/OE.20.001247
ISSN: 1094-4087
Pages: 1247 - 1252
Type of Material: Journal Article
Journal/Proceeding Title: OPTICS EXPRESS
Version: Final published version. This is an open access article.



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