Fano Resonances in Terahertz Metasurfaces: A Figure of Merit Optimization

Fano Resonances in Terahertz Metasurfaces: A Figure of Merit Optimization

An operation range of the figure of merit (FoM) that reflects the trade‐off between Q factor and resonance intensity of the Fano resonance is provided. The structural asymmetry parameter α = (l1 − l2)/(l1 + l2) × 100% in the resonator determines the FoM that has an optimized band of operation for as...

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Veröffentlicht in:Advanced optical materials 2015-11, Vol.3 (11), p.1537-1543
Hauptverfasser: Cong, Longqing, Manjappa, Manukumara, Xu, Ningning, Al‐Naib, Ibraheem, Zhang, Weili, Singh, Ranjan
Format: Artikel
Sprache:eng
Schlagworte:
Asymmetry
Banded structure
Figure of merit
High‐Q Fano resonance
metasurfaces
near‐field coupling
Optical materials
Optics
Optimization
Q factors
Resonators
Tradeoffs
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Zusammenfassung:An operation range of the figure of merit (FoM) that reflects the trade‐off between Q factor and resonance intensity of the Fano resonance is provided. The structural asymmetry parameter α = (l1 − l2)/(l1 + l2) × 100% in the resonator determines the FoM that has an optimized band of operation for asymmetry ranging from 4% to 8% in the terahertz Fano resonant metasurfaces.
ISSN:2195-1071
2195-1071
DOI:10.1002/adom.201500207