Journal
SENSORS
Volume 16, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/s16050642
Keywords
surface plasmon polaritons; metal-insulator-metal waveguide; Fano resonance; refractive index sensor; finite element method
Funding
- National Natural Science Foundation of China [61275166]
- Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province
- Science Foundation of North University of China [110246]
- Program for the Top Young and Middle-aged Innovative Talents of Higher Learning Institutions of Shanxi
- North University of China Science Fund for Distinguished Young Scholars
Ask authors/readers for more resources
A refractive index sensor based on metal-insulator-metal (MIM) waveguides coupled double rectangular cavities is proposed and investigated numerically using the finite element method (FEM). The transmission properties and refractive index sensitivity of various configurations of the sensor are systematically investigated. An asymmetric Fano resonance lineshape is observed in the transmission spectra of the sensor, which is induced by the interference between a broad resonance mode in one rectangular and a narrow one in the other. The effect of various structural parameters on the Fano resonance and the refractive index sensitivity of the system based on Fano resonance is investigated. The proposed plasmonic refractive index sensor shows a maximum sensitivity of 596 nm/RIU.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
