Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astro.spbu.ru/staff/ilin2/INTAS/P5-KHARK/PUBL/ABSTR/tll-jqsr.txt Дата изменения: Fri Nov 19 16:17:23 2010 Дата индексирования: Tue Oct 2 06:22:58 2012 Кодировка: Поисковые слова: millennium

COHERENT OPPOSITION EFFECTS FOR SEMI-INFINITE
DISCRETE RANDOM MEDIUM IN THE DOUBLE-SCATTERING APPROXIMATION

V.P.Tishkovets^1, P.V.Litvinov^2, M.V.Lyubchenko^3


^1 Astronomical observatory of Kharkov National University
Sumskaya St.,35, Kharkov, 61022, Ukraine
E-mail: tishkovets@astron.kharkov.ua

^2 Institute of Radio Astronomy of NASU
Chervonopraporna St.,4, Kharkov,61002, Ukraine
E-mail: litvinov@ira.kharkov.ua

Abstract

The rigorous equations of the theory of multiple scattering of light
by a layer of disordered medium have been used in the double-scattering
approximation for semi-infinite medium to determine the influence of
the particle properties on the coherent opposition effects. The effects
were found to be strongly dependent on concentration of scatterers in
the medium. The polarization opposition effect is more sensitive to
the properties of the scatterers than the photometric opposition effect.
The interference of waves could result in the negative polarization at
the backscattering direction as well as in the positive polarization.