Work

Improving the Sensitivity of the Plasmon-Based Sensor by Asymmetric Nanoarray

Year: 2021

Type: article

Abstract: In this work we investigate the effect of the symmetry in a 2-D arrays of gold nanoparticle on the sensitivity to the refractive index change. We demonstrate a generalized result that an asymmetric periodic arrangement of metallic nanoparticle leads to a higher sensitivity than a regular square of nanoparticle. Further decreasing the symmetry of the system by using asymmetric nanoparticle (nanorods, triangle) rather than symmetric nanoparticle (nanocylinder) will further improve this sensitivity. Finally, we suggest that such asymmetric nanostructure could operate as a SERS and LSPR plasmon based sensor by changing the polarization of the incident light.

Source: Plasmonics

DOI: 10.1007/s11468-021-01542-2

Authors: Aymen Bouali, Montacer Dridi, Florent Colas, Chantal Compère

Institutions: University of Carthage, Ifremer

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Région Bretagne

OpenAlex ID: W4249947166