Abstract
By embedding four-rod resonators inside a double-split ring resonator superlattice, a planar composite metamaterial possessing tripod plasmonic resonances is fabricated. Double Fano resonances are 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.
Original language | English |
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Article number | 025103 |
Journal | Journal of Optics (United Kingdom) |
Volume | 17 |
Issue number | 2 |
DOIs | |
State | Published - 1 Feb 2015 |
Bibliographical note
Publisher Copyright:© 2015 IOP Publishing Ltd.
Keywords
- Fano resonance
- Metamaterial
- Terahertz spectroscopy