Light scattering by randomly inhomogeneous dielectric spheres in the resonant range

Author

Zhigang Chen ; Taflove, Allen

Author_Institution

Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA

Volume

4

fYear

2003

fDate

22-27 June 2003

Firstpage

452

Abstract

In this paper, we have conducted finite-difference time-domain (FDTD) numerical experiments and supporting analyses demonstrating that the spectral dependence of the total scattering cross-section of randomly inhomogeneous dielectric spheres, of size in the resonant range, closely resembles that of their homogeneous counterparts having a volume-averaged refractive index. This holds even for the extreme case where the index of refraction within the inhomogeneous sphere varies randomly over the range from 1.0 to 2.0 and internal inhomogeneities span up to 0.4 dielectric wavelength.

Keywords

dielectric bodies; finite difference time-domain analysis; inhomogeneous media; light scattering; refractive index; FDTD; dielectric wavelength; light scattering; randomly inhomogeneous dielectric spheres; resonant range sphere size; total scattering cross-section spectral dependence; volume-averaged refractive index; Dielectrics; Electromagnetic scattering; Finite difference methods; Lattices; Light scattering; Mie scattering; Particle scattering; Refractive index; Resonance light scattering; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2003. IEEE

Conference_Location

Columbus, OH, USA

Print_ISBN

0-7803-7846-6

Type

conf

DOI

10.1109/APS.2003.1220308

Filename

1220308