Derived from the light scattering by a radially anisotropic sphere, unusual scattering behavior is exhibited, which breaks the Rayleigh law (scattering efficiency $Q_{\text{sca}}\sim q^4$ as $q\to 0$, where $q$ is the size parameter). Under certain conditions, we demonstrate an asymptotical relation between $Q_{\text{sca}}$ and $q$, i.e., $Q_{\text{sca}}=F{q}^8$, 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.

© 2012 Optical Society of America

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