Strong coupling between an inverse bowtie Nano-Antenna and a J-aggregate

Adam Weissman; Maxim Sukharev; Adi Salomon

doi:10.1016/j.jcis.2021.12.061

Strong coupling between an inverse bowtie Nano-Antenna and a J-aggregate

J Colloid Interface Sci. 2022 Mar 15:610:438-445. doi: 10.1016/j.jcis.2021.12.061. Epub 2021 Dec 11.

Authors

Adam Weissman¹, Maxim Sukharev², Adi Salomon³

Affiliations

¹ Department of Chemistry, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel.
² College of Integrative Sciences and Arts, Arizona State University, Mesa, AZ 85212, United States; Department of Physics, Arizona State University, Tempe, AZ 85287, United States.
³ Department of Chemistry, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel. Electronic address: Adi.Salomon@biu.ac.il.

PMID: 34929514
DOI: 10.1016/j.jcis.2021.12.061

Abstract

We demonstrate strong coupling between a single or few J-aggregates and an inverse bowtie plasmonic structure, when the J-aggregate is located at a specific axial distance from the metallic surface. Three hybrid modes are clearly observed, witnessing a strong interaction, with a Rabi splitting of up to 290 meV, the precise value of which significantly depends on the orientation of the J-aggregate with respect to the symmetry axis of the plasmonic structure. We repeated our experiments with a set of triangular hole arrays, showing consistent formation of three or more hybrid modes, in good agreement with numerical simulations.