Abstract
In this paper, a terahertz metasurface supercell consists of two ring resonators with slightly different radii is proposed. Electromagnetic-induced transparency (EIT)–like resonance is excited with an ultrahigh figure of merit. Furthermore, the impact of the coupling between the two rings is investigated on the transmission amplitude response, the quality factor, and the EIT peak amplitude by varying the radius of the top resonator. The achieved figure of merit of the EIT peak reaches 88.65 and almost 20,000 when gold and a perfect electric conductor are used for the metallic layer, respectively. The simplicity and unique properties of the proposed design could render it to be a desirable candidate for filtering, slow light applications, and sensing.
| Original language | English |
|---|---|
| Pages (from-to) | 371-379 |
| Number of pages | 9 |
| Journal | Journal of Infrared, Millimeter, and Terahertz Waves |
| Volume | 42 |
| Issue number | 4 |
| DOIs | |
| State | Published - Apr 2021 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature.
Keywords
- EIT resonance phenomena
- Figure-of-merit
- Metasurfaces
- Terahertz technology
ASJC Scopus subject areas
- Radiation
- Instrumentation
- Condensed Matter Physics
- Electrical and Electronic Engineering