Abstract
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 5mm demonstrated the highest refractive index sensitivity. For the change in the same magnitude of refractive index, this sensor of 5mm 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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
