Coupling between Surface Lattice Resonances and Plasmonic Gap Modes in Arrays of Gold Dimers with Different Geometries

Sema Ebrahimi (1, 2, 3) , Serguei Kochtcheev (1) , Ali Adawi (2, 3) , Anne-Laure Baudrion (1) , Pierre-Michel Adam (1) , Jean-Sebastien Bouillard (2, 3)

1 L2n - Lumière, nanomatériaux et nanotechnologies
2 Department of Physics and Mathematics, University of Hull
3 G.W.Gray Centre for Advanced Materials, University of Hull

Controlling the optical coupling between the plasmonic resonances in a periodic array of metallic dimers represents unique opportunities for enhancing light-matter interactions, thereby driving many applications ranging from detectors, sensors, data storage, and improved light sources to photovoltaics [1,2]. Here, we study the surface lattice resonance modes supported by square arrays of three different gold dimer nanoantennas geometries (bowties, kissing cylinders, coupled ellipsoids), and their coupling to the gap plasmon modes of the individual dimers.

Domaines: Physique [physics]

Sema Ebrahimi, Serguei Kochtcheev, Ali Adawi, Anne-Laure Baudrion, Pierre-Michel Adam, et al.. Coupling between Surface Lattice Resonances and Plasmonic Gap Modes in Arrays of Gold Dimers with Different Geometries. fifth International Workshop on Metallic Nano-Objects (MNO 2020), Nov 2021, Saint-Etienne, France. ⟨hal-03621124⟩