Surface plasmon resonance biosensor using inverted graded index optical fiber

被引：11
|
作者：
Nasirifar, Ruhallah [1 ]
Danaie, Mohammad [1 ]
Dideban, Abbas [1 ]
机构：
[1] Semnan Univ, Fac Elect & Comp Engn, Semnan, Iran
来源：
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2021年 / 44卷
关键词：
Surface plasmon resonance; Sensor; Optical fiber; Biosensor; REFRACTIVE-INDEX; HIGH-SENSITIVITY; BANDPASS FILTER; SENSOR; DESIGN; SILVER; METASURFACE;
D O I：
10.1016/j.photonics.2021.100916
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new type of surface plasmon resonance biosensor based on inverted graded index optical fiber is presented. To allow the exciting of the surface plasmons, the cladding is removed and a thin film of gold is coated on the inverted graded index core at this region. This sensor can measure the refractive index (RI) of biomaterials in the range of 1.36-1.48. The simulation results show that the proposed biosensor has a maximum sensitivity of about 7000 nm/RI unit (RIU) and the average figure of merit is 48 RIU-1. The simplicity of the design and its high sensitivity make it a good candidate for low-cost RI sensors suitable for biomaterials.
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收藏
页数：9
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