Maximizing scattering by coated spheres with radial anisotropy

H.-Z. Liu , K. Mouthaan , Saïd Zouhdi (1) , M.S. Leong

1 LGEP - Laboratoire de génie électrique de Paris

The plasmonic resonant condition, associated with scattering maximization, is analytically established for core-shell spheres with radial anisotropy in the small-radii and low-dissipation limit. A generalized expression of the effective permittivity of the scatterers is also formulated. The derived closed-form results are validated with full-wave numerical analysis. The effects of dielectric anisotropy, mode of resonance, size, and loss are further discussed.

H.-Z. Liu, K. Mouthaan, Saïd Zouhdi, M.S. Leong. Maximizing scattering by coated spheres with radial anisotropy. Applied physics. A, Materials science & processing, 2012, 109 (1), pp.189-196. ⟨10.1007/s00339-012-7032-1⟩. ⟨hal-00779087⟩