Abstract
We study the scattering of normally incident waves by core-shell nanowires, which support both electric and magnetic resonances. Within such nanowires, for -polarized incident waves, each electric resonance corresponds to two degenerate scattering channels while the magnetic resonance corresponds to only one channel. Consequently, when the electric dipole (ED) and magnetic dipole (MD) are tuned to overlap spectrally, the magnitude of the ED is twice that of the magnetic one, leading to a pair of angles of vanishing scattering. We further demonstrate that the scattering features of nanowires are polarization dependent, and vanishing scattering angles also can be induced by Fano resonances due to the interference of higher-order electric modes with the broad MD mode.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Ali Mirzaei, Ilya V. Shadrivov, Andrey E. Miroshnichenko, and Yuri S. Kivshar
Opt. Express 21(9) 10454-10459 (2013)
Xiaoming Zhang, Yu Hu, Jinjing Yu, Leiqing Zhou, Zhaogang Zhang, Yijun Yuan, Xia Zhou, Haiyan Wang, Chao Wu, Fang Xie, Biao Xie, Tianyue Zhang, and Jianping Liu
J. Opt. Soc. Am. B 41(2) 321-326 (2024)
J. van de Groep and A. Polman
Opt. Express 21(22) 26285-26302 (2013)