Effect of Spectral Signal-to-Noise Ratio on Resolution Enhancement at Surface Plasmon Resonance

被引：3

作者：

Ma, Long ^{[1
]}

Xia, Guo ^{[2
,3
,4
]}

Jin, Shiqun ^{[2
,3
,4
]}

Bai, Lihao ^{[1
]}

Wang, Jiangtao ^{[1
]}

Chen, Qiaoqin ^{[1
]}

Cai, Xiaobo ^{[1
]}

机构：

[1] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Peoples R China

[2] Hefei Univ Technol, Acad Optoelect Technol, Hefei 230009, Peoples R China

[3] Hefei Univ Technol, Special Display & Imaging Technol Innovat Ctr Anh, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Peoples R China

[4] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Natl Engn Lab Special Display Technol, Hefei 230009, Peoples R China

来源：

SENSORS | 2021年 / 21卷 / 02期

关键词：

sensor; refractive index resolution; surface plasmon resonance; spectral signal-to-noise ratio; SPR BIOSENSOR; SENSORS; INTERROGATION; SENSITIVITY; DESIGN;

D O I：

10.3390/s21020641

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Refractive index resolution is an important indicator for a wavelength interrogation surface plasmon resonance sensor, which can be affected by signal-to-noise ratio. This paper investigates the impact of spectral signal-to-noise ratio on a surface plasmon resonance sensor. The effects of different spectral powers and noises are compared and verified through simulation and experiments. The results indicate that the optimal resonance wavelength is changed and the refractive index resolution can even be nearly twice as good when the spectral signal-to-noise ratio is increased. The optimal resonance wavelength can be found by changing the spectral power distribution or noise.

引用

页码：1 / 12

页数：12

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