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Fano Resonances in Terahertz Metasurfaces: A Figure of Merit Optimization
Author(s) -
Cong Longqing,
Manjappa Manukumara,
Xu Ningning,
AlNaib Ibraheem,
Zhang Weili,
Singh Ranjan
Publication year - 2015
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201500207
Subject(s) - figure of merit , terahertz radiation , fano resonance , resonator , asymmetry , fano plane , computer science , resonance (particle physics) , optoelectronics , physics , materials science , optics , engineering physics , particle physics , plasmon , mathematics , pure mathematics
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 = ( l 1 − l 2)/( l 1 + l 2) × 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.