Computer Physics Communications Program LibraryPrograms in Physics & Physical Chemistry |

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Manuscript Title: A library for computing the filtered and non-filtered 3D Green's
tensor associated with infinite homogeneous space and surfaces. | ||

Authors: P. Gay-Balmaz, O.J.F. Martin | ||

Program title: LIBG3D | ||

Catalogue identifier: ADPS_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 144(2002)111 | ||

Programming language: Fortran. | ||

Computer: SUN ULTRA 60 (256MB RAM). | ||

Operating system: Solaris 2.7. | ||

RAM: 208K words | ||

Word size: 64 | ||

Keywords: Quasi-static approximation, Green's tensor technique, Filtered Green's tensor, High permittivity particules, Two-layers medium, Electromagnetic. | ||

Classification: 10. | ||

Nature of problem:Computation of the Green's tensor G(r,r'), i.e. of the field radiated at the observation point r by three orthogonal source dipoles located at r'. This dyadic is computed both for free space and for a surface in the quasi-static limit. Further, the so-called filtered Green's tensor, which increases the application range of the coupled-dipole approximation to higher permittivity scatterers can also be computed [1]. | ||

Solution method:Analytical expressions from the free space Green's tensor are combined to obtain the electrostatic Green's tensor associated with a surface. For the filtered Green's tensor, a spectral approach, with integration in complex space is used [2,3]. | ||

Restrictions:None | ||

Unusual features:None | ||

Running time:0.62 sec to compute the filtered Green's tensor associated with a surface, for 500 source-observation pairs. | ||

References: | ||

[1] | N.B. Piller, O.J.F. Martin, Increasing the performances of the coupled-dipole approximation: A spectral approach, IEEE Trans. Antennas Propag. 46 (1998) 1126-1137. | |

[2] | P. Gay-Balmaz, O.J.F. Martin, Validity domain and limitation of non-retarded Green's tensor for electromagnetic scattering at surfaces, Opt. Comm. 184 (2000) 37-47. | |

[3] | P. Gay-Balmaz, O.J.F. Martin, Electromagnetic scattering of high permittivity particles on a substrate, Appl. Optics (2001) (in press). |

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