Transmission and refractive index sensing based on Fano resonance in MIM waveguide-coupled trapezoid cavity | Zendy

Jinli Zhou | Zendy; Huibin Chen | Zendy; Zhidong Zhang | Zendy; Jun Tang | Zendy; Jiangong Cui | Zendy; Chenyang Xue | Zendy; Shubin Yan | Zendy

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Transmission and refractive index sensing based on Fano resonance in MIM waveguide-coupled trapezoid cavity

Author(s) -

Jinli Zhou,

Huibin Chen,

Zhidong Zhang,

Jun Tang,

Jiangong Cui,

Chenyang Xue,

Shubin Yan

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4974075

Subject(s) - fano resonance , refractive index , fano plane , plasmon , materials science , waveguide , resonance (particle physics) , transmission (telecommunications) , optics , q factor , optoelectronics , metal insulator metal , physics , telecommunications , resonator , computer science , mathematics , particle physics , voltage , quantum mechanics , capacitor , pure mathematics

A metal–insulator–metal (MIM) waveguide-coupled trapezoid cavity is presented, and the transmission properties are investigated by finite-element method. Results show that an asymmetric Fano profile emerged in the transmission spectrum, which was caused by the asymmetrical break of the MIM waveguide-coupled trapezoid cavity system. A refractive index sensitivity, Q-factor and FOM of approximately 750nm/RIU, 68.3 and 65.2 were measured based on the Fano resonance. The effect of the structural parameters on the transmission properties is also investigated. The results provide a new possibility for designing high-performance plasmonic devices

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