2016/05/28 by Wei Liu, Bing Lei, Liu, Wei +5
Engineering · Materials Science · Physics and Astronomy · #Magneto-Optical Properties and Applications #Optical Coatings and Gratings #Plasmonic and Surface Plasmon Research #physics.optics
paper · pdf · doi:10.48550/arxiv.1605.08895
9 pages, 4 figures
arxiv created 2016/05/28 · arxiv updated 2016/05/31
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.