4.6 Article

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

期刊

OPTICS EXPRESS
卷 20, 期 2, 页码 1247-1252

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OPTICAL SOC AMER
DOI: 10.1364/OE.20.001247

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  1. NSF [AST-1008570]
  2. Division Of Astronomical Sciences
  3. Direct For Mathematical & Physical Scien [1008570] Funding Source: National Science Foundation

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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

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