Humidity sensor based on MMF-CLF-MMF structure with GO-enhanced SPR effect
A tapered multimode coreless multimode fiber structure (MMF-TCLF-MMF) has been proposed and studied for refractive index (RI) and humidity sensing applications. A gold film was deposited on the tapered region to excite surface plasmon resonance (SPR), which serves as the sensing area. Further surface functionalization with graphene oxide (GO) enhances the SPR effect. A high sensitivity of 5448.7 nm/RIU was achieved within the RI range of 1.37-1.41. In the relative humidity range of 30%-80%, a humidity sensing sensitivity of 116 pm/%RH was achieved.
Authors
- Chencheng Zhang (ORCID: https://orcid.org/0000-0003-4472-4134)
- Shengli Pu
- W. Liu
- Tengfei Xu (ORCID: https://orcid.org/0009-0006-6200-2505)
- Y. Ji (ORCID: https://orcid.org/0009-0003-9402-2250)
- Siyang Huang (ORCID: https://orcid.org/0009-0002-3828-040X)
Institutions
- University of Shanghai for Science and Technology (CN)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3061970
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00