Enhanced sensing ability in multiple Fano resonance optical biosensor with high-contrast metastructures

Liping Bi; Xinye Fan; Hening Zhao; Lantao Liu; Xin Wei; Huijuan Niu; Chuanchuan Li; Chenglin Bai; Wenjing Fang

Results in Optics (Dec 2022)

Enhanced sensing ability in multiple Fano resonance optical biosensor with high-contrast metastructures

Liping Bi,
Xinye Fan,
Hening Zhao,
Lantao Liu,
Xin Wei,
Huijuan Niu,
Chuanchuan Li,
Chenglin Bai,
Wenjing Fang

Affiliations

Liping Bi: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China
Xinye Fan: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China; Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252000, China; Liaocheng Key Laboratory of Industrial-Internet Research and Application, Liaocheng 252000, China; Corresponding authors.
Hening Zhao: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China
Lantao Liu: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China
Xin Wei: Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
Huijuan Niu: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China; Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252000, China; Liaocheng Key Laboratory of Industrial-Internet Research and Application, Liaocheng 252000, China
Chuanchuan Li: Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
Chenglin Bai: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China; Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252000, China; Liaocheng Key Laboratory of Industrial-Internet Research and Application, Liaocheng 252000, China
Wenjing Fang: School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 252000, China; Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng 252000, China; Liaocheng Key Laboratory of Industrial-Internet Research and Application, Liaocheng 252000, China; Corresponding authors.

Journal volume & issue: Vol. 9
p. 100276

Abstract

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Multiple Fano resonance optical sensors based on high-contrast metastructures (HCM) are designed in this paper, combining the temporal coupled-mode theory (TCMT) with the eigenmode information to investigate the resonance mechanism and optical sensing characteristics. The results demonstrate that three sharp Fano peaks with the modulation depths can reach nearly 100 %, which is caused by the interference between the guided mode resonance and the eigenmode. The resonance peaks linewidth of the transmission spectra decreases upon increasing the distance between the grating strips. The maximal Q-factor can exceed 104, the sensitivity (S) is 642.5 nm/RIU and the figure of merit (FOM) is 1717.9.

Published in Results in Optics

ISSN: 2666-9501 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics: Optics. Light
Website: https://www.journals.elsevier.com/results-in-optics

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