KMS Chongqing Institute of Green and Intelligent Technology, CAS
| Influence of ions on dynamic response of surface plasmon resonance fiber optic sensor | |
Huang, Yu  ; Zhang, Wei; Xie, Wanyi; Tang, Dongyun; Zhang, Hua; Du, Chunlei
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| 2013-09-01 | |
| 摘要 | In this paper, the effects of exposed sensing region length on fiber optic sensor based on surface plasmon resonance (SPR) had been experimentally investigated. The refractive index sensitivity of SPR fiber optic sensor increased with increasing refractive index. Compared to other two counterparts, the sensor with short sensing region length of 5 mm demonstrated the highest refractive index sensitivity. For the change in the same magnitude of refractive index, this sensor of 5 mm sensing region length showed significantly different dynamic response curve when it was exposed to ionic (NaCl solution) and non-ionic (ethanol) solution. This result suggests that ions have dramatic influence on the resonance wavelength of surface plasmon resonance spectrum, due to the interaction of ions with gold film surface. This feature provides a great potential of SPR fiber optic sensor to on-line monitor of flowing solution. (C) 2013 Elsevier B.V. All rights reserved. |
| 关键词 | Surface plasmon resonance Optical fiber Refractive index sensitivity Dynamic response Ion effect |
| DOI | 10.1016/j.snb.2013.06.008 |
| 发表期刊 | SENSORS AND ACTUATORS B-CHEMICAL
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| ISSN | 0925-4005 |
| 卷号 | 186页码:199-204 |
| 通讯作者 | Huang, Y (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:000324223600028 |
| 语种 | 英语 |
