Investigation of Fano resonance in planar metamaterial with perturbed periodicity.

作者信息

Pu Mingbo, Hu Chenggang, Huang Cheng, Wang Changtao, Zhao Zeyu, Wang Yanqin, Luo Xiangang

机构信息

State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Science, Chengdu, China.

出版信息

Opt Express. 2013 Jan 14;21(1):992-1001. doi: 10.1364/OE.21.000992.

In this paper, we report the formation of sharp Fano resonance in planar metamaterial array with perturbed periodicity. Rigorous sheet impedance theory is given to analyze the electric-magnetic and magnetic-magnetic coupling effects. It is found that periodicity perturbation can provide a general approach for Fano resonance with ultra-strong local field enhancement.