  Graphene monolayers can be used for atomically thin three-dimensional
shell-shaped superscatterer designs. Due to the excitation of the first-order
resonance of transverse magnetic (TM) graphene plasmons, the scattering cross
section of the bare subwavelength dielectric particle is enhanced significantly
by five orders of magnitude. The superscattering phenomenon can be intuitively
understood and interpreted with Bohr model. Besides, based on the analysis of
Bohr model, it is shown that contrary to the TM case, superscattering is hard
to occur by exciting the resonance of transverse electric (TE) graphene
plasmons due to their poor field confinements.
