Double Fano resonance with externally driven subradiant mode
- 등재 SCOPUS
- 발행기관 Institute of Electrical and Electronics Engineers Inc.
- 발행년도 2016
- 총서유형 Journal
- 회의명 10th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2016
- 일자 19 September 2016 through 22 September 2016
- URI http://www.dcollection.net/handler/ewha/000000141613
- ISBN 9781509018031
- 본문언어 영어
- Published As http://dx.doi.org/10.1109/MetaMaterials.2016.7746488
초록/요약
In this study, we observe that a dark mode is not necessarily prerequisite for an asymmetric Fano resonance to take place in plasmonic structures. The characteristic asymmetry feature of Fano resonance is retained in a plasmonic structure when both superradiant and subradiant oscillators are externally driven. Double Fano resonances are experimentally and theoretically observed where a common subradiant driven oscillator is coupled with two superradiant oscillators. As a classical analogue of a four-level tripod atomic system, the extinction spectrum of the composite metamaterial exhibits a coherent effect based on double Fano resonances. Transfer of the absorbed power between two orthogonal superradiant oscillators is shown to be mediated by the common subradiant oscillator. © 2016 IEEE.
more