  We achieve unidirectional forward superscattering by multilayered spherical
cavities which are effectively radially anisotropic. It is demonstrated that,
relying on the large effective anisotropy, the electric and magnetic dipoles
can be tuned to spectrally overlap in such cavities, which satisfies the
Kerker's condition of simultaneous backward scattering suppression and forward
scattering enhancement. We show such scattering pattern shaping can be obtained
in both all-dielectric and plasmonic multilayered cavities, and believe that
the mechanism we have revealed provides extra freedom for scattering shaping,
which may play a significant role in many scattering related applications and
also in optoelectronic devices made up of intrinsically anisotropic two
dimensional materials.
