International Congress on Advanced Electromagnetic Materials in Microwaves and Optics
Double Fano resonances in a composite metamaterial possessing tripod plasmonic resonances
Yeon Ui Lee, E. Y. Choi, E. S. Kim, J. H. Woo, B. Kang, J. Kim, B. C. Park, Tae Y. Hong, Jae Hoon Kim, Jeong Weon Wu
Abstract
Double Fano resonances are observed in a planar composite metamaterial possessing tripod plasmonic resonances, where a common subradiant driven oscillator is coupled with two superradiant oscillators. As a classical analogue of four-level tripod atomic system, the extinction spectrum of the composite metamaterial exhibits a coherent effect based on double Fano resonances. It is shown that a transfer of the absorbed power between two orthogonal superradiant oscillators is mediated by a common subradiant oscillator.