PROGRAM SUMMARY
Title of program:
LIBG3D
Catalogue identifier:
ADPS
Ref. in CPC:
144(2002)111
Distribution format: tar gzip file
Operating system: Solaris 2.7
High speed store required:
208K words
Number of bits in a word:
64
Number of lines in distributed program, including test data, etc:
3827
Keywords:
Quasi-static approximation, Green's tensor technique,
Filtered Green's tensor, High permittivity particules,
Two-layers medium, Electromagnetic.
Programming language used: Fortran
Computer:
SUN ULTRA 60 (256MB RAM).
Nature of physical 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].
Method of solution:
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
Typical running time:
0.62 sec to compute the filtered Green's tensor associated with a
surface, for 500 source-observation pairs.
Unusual features:
None
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).