Abstract
The work introduces a tunable Fano resonance with obvious sensing properties in a graphene-based metasurface. And the electromagnetic responses as functions of the structural defect and the Fermi level are investigated by using finite-difference time-domain (FDTD) simulation analysis. The results show that the influence of the height for the defect on Fano resonance is much greater than that of the width and position for the defect on Fano resonance. Notably, our specifically designed structure demonstrates improved sensing properties, achieving the maximum of sensitivity S = 1.1THz/RIU. This enhancement is attributed to the increased interaction between environmental substances and electromagnetic waves caused by the Fano resonance. These findings contribute significantly to the comprehension of plasmonic resonance in graphene-based metasurfaces and underscore their promising potential in sensing technologies.
Sign-in/Register to access full text options 
Free) 
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 call
