KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Graphene-Based Long-Period Fiber Grating Surface Plasmon Resonance Sensor for High-Sensitivity Gas Sensing | |
Wei, Wei1,2,3 ; Nong, Jinpeng1,3; Zhang, Guiwen1; Tang, Linlong3,4 ; Jiang, Xiao1; Chen, Na1; Luo, Suqin2; Lan, Guilian1; Zhu, Yong1
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| 2017 | |
| 摘要 | A graphene-based long-period fiber grating (LPFG) surface plasmon resonance (SPR) sensor is proposed. A monolayer of graphene is coated onto the Ag film surface of the LPFG SPR sensor, which increases the intensity of the evanescent field on the surface of the fiber and thereby enhances the interaction between the SPR wave and molecules. Such features significantly improve the sensitivity of the sensor. The experimental results demonstrate that the sensitivity of the graphene-based LPFG SPR sensor can reach 0.344 nm%(-1) for methane, which is improved 2.96 and 1.31 times with respect to the traditional LPFG sensor and Ag-coated LPFG SPR sensor, respectively. Meanwhile, the graphene-based LPFG SPR sensor exhibits excellent response characteristics and repeatability. Such a SPR sensing scheme offers a promising platform to achieve high sensitivity for gas-sensing applications. |
| 关键词 | surface plasmon resonance graphene long-period fiber grating sensitivity |
| DOI | 10.3390/s17010002 |
| URL | 查看原文 |
| 发表期刊 | SENSORS
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| ISSN | 1424-8220 |
| 卷号 | 17期号:1页码:10 |
| 通讯作者 | Wei, W ; Zhu, Y (reprint author), Chongqing Univ, Coll Optoelect Engn, Minist Educ China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China. ; Wei, W (reprint author), Chongqing Acad Sci & Technol, Chongqing Res Ctr Adv Mat, Chongqing 401123, Peoples R China. ; Wei, W (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 401122, Peoples R China. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000393021000002 |
| 语种 | 英语 |
