Title :
The Optical Theorem and the Rayleigh-Gans Power Shortage
Author :
Snider, Arthur David ; Garcia-Lopez, Alicia
Author_Institution :
Dept. of Electr. Eng., Univ. of South Florida, Tampa, FL
Abstract :
Several authors have written that the forward scattering power component addressed by the optical theorem is supposed to account for both extinction components (scattering and absorption), yet note that the scattering contribution is missing when the theorem is applied to the Rayleigh-Gans model. Some ad hoc repairs have been proposed. We demonstrate that careful bookkeeping in the derivation of the theorem reveals the source of the "paradox," resolving it without resort to extraneous considerations
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; Rayleigh-Gans power shortage; extinction components; forward scattering power component; optical theorem; Absorption; Dielectric losses; Electromagnetic radiation; Electromagnetic scattering; Energy resolution; Mie scattering; Optical devices; Optical losses; Optical scattering; Rayleigh scattering; Absorbing media; Rayleigh scattering; dielectric losses; electromagnetic scattering by absorbing media; optical theorem; scattering;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2006.886514