Super scattering phenomenon in active spherical nanoparticles*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11174222 and 91230203).

Liu Chang-Yu1, Xie Ya-Ming2, 3, Wang Zhi-Guo1, †
       

(color online) ((a)–(d)) The optical cross sections each as a function of for spherical nanoparticles with , and , respectively. Here the radius of the particle is R = 65.1 nm and the permittivity used in the Drude model is . The inset in panel (d) shows at the critical point. Abbreviations for resonances: , electric dipole; , electric quadrupole; , electric octupole; , electric hexadecapole.