[15p-B12-1~19] 3.12 Nanoscale optical science and near-field optics

[15p-B12-1] A single plasmonic nanoprism for controlling tridirectional scattering of light

〇Yoshito Tanaka^1,2, Tsutomu Shimura¹ (1.Univ. of Tokyo, 2.JST-PRESTO)

Keywords:localized surface plasmons, metallic nanostructures, nanophotonic polarization sorter

Localized surface plasmons have allowed to direct the scattered photons in a particular direction using multiple-element array antennas with carefully designed phase differences, such as the Yagi-Uda geometry. Here, we will demonstrate unidirectional side scattering of light by a single triangular nanoprism. Furthermore, this plasmanic nanodevice sorts the incoming photons into three different directions according to their polarization direction.