Performance analysis of surface plasmon resonance sensor with high-order absentee layer

被引：9
作者：
Meng, Qing-Qing [1 ]
Zhao, Xin [1 ]
Chen, Shu-Jing [2 ]
Lin, Cheng-You [1 ]
Ding, Ying-Chun [1 ]
Chen, Zhao-Yang [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Sci, Beijing 100029, Peoples R China
[2] China Univ Geosci, Sch Mat Sci & Technol, Natl Lab Mineral Mat, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Beijing 100083, Peoples R China
来源：
CHINESE PHYSICS B | 2017年 / 26卷 / 12期
基金：
中国国家自然科学基金;
关键词：
surface plasmon resonance sensor; high-order absentee layer; figure of merit; SENSITIVITY-ENHANCEMENT; MERIT ENHANCEMENT; WAVE-GUIDE; THIN-FILM; GRAPHENE; FIGURE; PRISM; INTERROGATION; IMPROVEMENT; BIOSENSORS;
D O I：
10.1088/1674-1056/26/12/124213
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A surface plasmon resonance (SPR) sensor with a high-order absentee layer on the top of metallic film is proposed. The performance of the SPR sensor with NaCl, MgO, TiO2 or AlAs high-order absentee layer is analyzed theoretically. The results indicate that the sensitivity and the full width at half maximum of those SPR sensors decrease with the increasing of the order of absentee layer, but the variation of the figure of merit (FOM) depends on the refractive index of absentee layer. By improving the order of absentee layer with high-refractive-index, the FOM of the SPR sensor can be enhanced. The maximum value of FOM for the SPR sensor with high-order TiO2 (or AlAs) absentee layer is 1.059% (or 2.587%) higher than the one with one-order absentee layer. It is believed the proposed SPR sensor with high-order absentee layer will be helpful for developing the high-performance SPR sensors.
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页数：7
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