Journal
IEEE PHOTONICS JOURNAL
Volume 14, Issue 6, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2022.3219137
Keywords
Temperature sensors; Temperature measurement; Plasmons; Optical fiber sensors; Metals; Pipelines; Gold; Microstructured optical fiber; optical fiber sensor; surface plasmon resonance; refractive index and temperature sensor
Funding
- Natural Science Foundation of Hebei Province [F2019202294]
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A novel side-opening grapefruit fiber-based SPR sensor is designed for simultaneous measurement of refractive index (RI) and temperature. The variations of RI and temperature lead to the shifts of two resonance peaks, which can be used to determine the variations of RI and temperature. The simulation results show different sensitivities of Peak I and Peak II to the changes of RI and temperature.
A novel side-opening grapefruit fiber-based SPR sensor is designed to realize simultaneous measurement of refractive index (RI) and temperature. The open section of the grapefruit fiber is coated with a gold layer, which can support two main resonance peaks. The variations of RI and temperature can influence the coupling efficiency between core-guided mode and plasmon mode, thus lead to the two peaks shifts that can be used to determine the variations of RI and temperature. Simulation results demonstrate that the RI coefficients of Peak I and Peak II are 1400 nm/RIU and 226 nm/RIU, respectively. The temperature coefficients of Peak I and Peak II are 34 pm/degrees C and 527.2 pm/degrees C, respectively.
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