Spin-controlled directional launching of surface plasmons at the subwavelength scale
Huang Tao1, Wang Jia-jian2, Li Zi-wei2, Liu Wei1, Lin Feng1, Fang Zhe-yu1, 3, Zhu Xing1, 4, †,
       

(a) and (b) Near-field optical images of the proposed structure under the LCP and RCP illuminations, respectively. The insets on the right side are the enlarged view of the parts enclosed by the white dotted line.