Multiple Fano resonances in nanorod and nanoring hybrid nanostructures*

Project supported by the National Natural Science Foundation of China (Grant Nos. 11674275, 11601469, and 61505174), the Natural Science Foundation of Hebei Province, China (Grant Nos. F2016203282, C2014203212, and E2016203185), and the Science and Technology Research Project of Hebei Higher Education Institutions, China (Grant No. QN2018071).

Wu Xijun1, Dou Ceng1, Xu Wei1, Zhang Guangbiao1, Tian Ruiling2, Liu Hailong1, †
       

The mechanism of Fano resonance in the NRD nanostructure. Extinction spectra of the (a) nanorod, (b) NRD, and (c) nanoring. Insets are the near-field charge density and electric field distributions.