Non-Rayleigh scattering behavior for anisotropic Rayleigh particles

Abstract

Derived from the light scattering by a radially anisotropic sphere, unusual scattering behavior is exhibited, which breaks the Rayleigh law (scattering efficiency 𝑄sca∼𝑞⁴ as 𝑞→0, where 𝑞 is the size parameter). Under certain conditions, we demonstrate an asymptotical relation between 𝑄sca and 𝑞, i.e., 𝑄sca=𝐹𝑞⁸, which is not realizable for isotropic particles in Rayleigh regime. Moreover, suitable adjustment of the anisotropic parameters can further suppress the coefficient 𝐹, resulting in enhanced transparency of the anisotropic particle. Show more