|Acceptance Date||2021-01 IN PRESS|
|Author(s)||Bouali Aymen1, Dridi Montacer2, Colas Florent2, Compère Chantal2|
|Affiliation(s)||1 : University of Carthage , Faculty of Sciences of Bizerte: Universite de Carthage Faculte des Sciences de Bizerte, Tunisie
2 : Ifremer , Centre de Brest: Ifremer Centre de Bretagne, France
|Source||Plasmonics (1557-1955) (Springer) In Press|
|Keyword(s)||Biosensors, nanoparticles, optical sensors, plasmons, resonance|
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.
Bouali Aymen, Dridi Montacer, Colas Florent, Compère Chantal Improving The Sensitivity Of The Plasmon Based Sensor By Asymmetric Nanoarray. Plasmonics IN PRESS. Publisher's official version : https://doi.org/10.21203/rs.3.rs-512306/v1 , Open Access version : https://archimer.ifremer.fr/doc/00698/81036/