Polarimetric scattering from a layer of spatially oriented metamaterial small spheroids

Key Laboratory of Wave Scattering and Remote Sensing Information (Ministry of Education), Fudan University, Shanghai 200433, P.R. China

Corresponding author: yqjin@fudan.ac.cn

Received: 18 August 2004
Revised: 24 December 2004
Accepted: 11 February 2005
Published online: 27 April 2005

Abstract

Complex scattering amplitude functions of a small metamaterial spheroid are derived. The Mueller matrix solution for polarimetric bistatic scattering from a layer of random metamaterial small spheroids is then constructed. Bistatic scattering of metamaterial and dielectric spheroids are numerically calculated. Linearly co-polarized backscattering coefficients , and are presented to show the dependence upon frequency. The co-polarized and cross-polarized backscattering coefficients and polarizability degree of a layer of non-uniformly oriented metamaterial spheroids under illumination of an elliptic polarized plane wave are numerically simulated. Effects of metamaterial parameters on scattering pattern and scattering mechanism are interpreted. Numerical results indicate that the bistatic scattering of metamaterial particles is enhanced largely and demonstrates asymmetric directivity. Meanwhile, polarized difference of strongly varies with frequency due to constitutive dispersion of and .