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High-sensitivity refractive index sensors based on Fano resonance in the plasmonic system of splitting ring cavity-coupled MIM waveguide with tooth cavity
Yanjun Zhang; Yiqin Kuang; Zhidong Zhang; Yue Tang; Jianqiang Han; Ruibing Wang; Jiangong Cui; Yulong Hou; Wenyi Liu
2019-01
Source PublicationAPPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
ISSN0947-8396
Volume125Issue:1
Abstract

A metal-insulator-metal (MIM) waveguide with tooth cavity-coupled ring splitting cavity is proposed. Transmission characteristics and refractive index sensitivity are investigated by using finite-element method. A Fano-like line is observed in the transmission spectrum, and it is caused by the coherent superposition of the narrow discrete and wide continuous states. A maximum sensitivity of 1200nm/RIU is achieved based on the Fano resonance effect when the air in the MIM waveguide and cavity is replaced by an insulator with a different refractive index. In addition, the derived structures of the plasmonic system are studied, and multiple Fano-like resonances are observed in the transmission spectrum. The effects of the structural parameters of plasmonic system on the Fano resonance are also investigated.

DOI10.1007/s00339-018-2283-0
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000452709600006
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Cited Times [WOS]:18   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Chinese Medical Sciences
Corresponding AuthorZhidong Zhang
AffiliationScience and Technology on Electronic Test and Measurement Laboratory, North University of China, No 3, Xue Yuan Road, Taiyuan 030051, China
Recommended Citation
GB/T 7714
Yanjun Zhang,Yiqin Kuang,Zhidong Zhang,et al. High-sensitivity refractive index sensors based on Fano resonance in the plasmonic system of splitting ring cavity-coupled MIM waveguide with tooth cavity[J]. APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,2019,125(1).
APA Yanjun Zhang.,Yiqin Kuang.,Zhidong Zhang.,Yue Tang.,Jianqiang Han.,...&Wenyi Liu.(2019).High-sensitivity refractive index sensors based on Fano resonance in the plasmonic system of splitting ring cavity-coupled MIM waveguide with tooth cavity.APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING,125(1).
MLA Yanjun Zhang,et al."High-sensitivity refractive index sensors based on Fano resonance in the plasmonic system of splitting ring cavity-coupled MIM waveguide with tooth cavity".APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING 125.1(2019).
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