Back to Search
Start Over
A Novel Fiber-Based Symmetrical Long-Range Surface Plasmon Resonance Biosensor With High Quality Factor and Temperature Self-Reference
- Source :
- IEEE Transactions on Nanotechnology. 18:1137-1143
- Publication Year :
- 2019
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2019.
-
Abstract
- A novel wavelength modulated optical fiber-based symmetrical long-range surface plasmon resonance (sLRSPR) biosensor with high quality factor (Q-F) of 56.70 RIU−1 and temperature self-reference was proposed and demonstrated. The multilayered architecture of the sLRSPR biosensor consisted of cladding/dielectric-buffer-layer (DBL)/Au-nanofilm/DBL/analyte, and the DBLs on both sides of the Au-nanofilm were identical, which greatly increased the matching degree of the permittivities of analyte and the DBL near cladding and reduced the loss of long-range surface plasmon-polaritons. Therefore, the sLRSPR sensor displayed excellent sensing performance, and its Q-F was 3.27-folds higher than that of the conventional SPR sensor. Furthermore, the sLRSPR sensor was employed as a biosensor for the measurement of average refractive index (RI) of cell, and the temperature-sensitive optical adsorption characteristic of the DBL was utilized to provide temperature self-reference for the RI measurement. The sLRSPR biosensor realized simultaneous measurement of RI and temperature at the exactly same location, which can eliminate the measurement error introduced by temperature to RI measurement. The sLRSPR biosensor proposed in this paper possessed higher detection precision and presented greatly promising application prospects in the field of biochemistry.
- Subjects :
- Analyte
Optical fiber
Materials science
business.industry
02 engineering and technology
021001 nanoscience & nanotechnology
Cladding (fiber optics)
Temperature measurement
Computer Science Applications
law.invention
Wavelength
law
Optoelectronics
Electrical and Electronic Engineering
Surface plasmon resonance
0210 nano-technology
business
Biosensor
Refractive index
Subjects
Details
- ISSN :
- 19410085 and 1536125X
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Nanotechnology
- Accession number :
- edsair.doi...........90bb601267f95a5f35c5ee38b29f4616