Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astro.spbu.ru/staff/ilin2/INTAS/P3-SPB1/PUBL/ABSTR/fi-irs.txt Дата изменения: Fri Nov 19 16:17:40 2010 Дата индексирования: Tue Oct 2 06:09:06 2012 Кодировка: Поисковые слова: бгпву вжнвпжкаехмву впровнку

LIGHT SCATTERING BY AXISYMMETRIC PARTICLES: A NEW APPROACH
WITH THE SPECIAL CHOICE OF SCALAR POTENTIALS

V.G. Farafonov
St.Petersburg University of Aerocosmic Instrumentation
St.Petersburg, 190000 Russia

and

V.B. Il'in
Sobolev Astronomical Institute, St.Petersburg University
St.Petersburg, 198504 St.Petersburg, Russia


ABSTRACT

A new approach to solve the problem of light scattering by particles
with an axial symmetry is developed. The electromagnetic fields are
divided in two (axisymmetric and non-axisymmetric) parts. The scattering
problem formulated in the integral form is solved separately for each
of the parts using specially chosen scalar potentials. The potentials
are expanded in terms of the spherical wave functions, and the expansion
coefficients are determined from solution of the infinite systems of
linear algebraic equations. A numerical code based on the approach is
created and tested for spheroids, finite size cylinders, and Chebyshev
particles.