Design of subwavelength superscattering nanospheres

Zhichao Ruan, Shanhui Fan
2011 Applied Physics Letters  
We design a subwavelength superscattering nanosphere with plasmonic-dielectric-plasmonic layer structure. We show that the scattering cross section of such a particle can be significantly enhanced by employing multiple resonances with different total angular momenta, and by ensuring that all these resonances have almost the same frequency and operate in the overcoupling region.
doi:10.1063/1.3536475 fatcat:wmghlszo4jb7jf56fll57ewbea