Cao, S.; Xing, Y.; Sun, Y.; Liu, Z.; He, S. Strong Coupling between a Single Quantum Emitter and a Plasmonic Nanoantenna on a Metallic Film. Nanomaterials2022, 12, 1440.
Cao, S.; Xing, Y.; Sun, Y.; Liu, Z.; He, S. Strong Coupling between a Single Quantum Emitter and a Plasmonic Nanoantenna on a Metallic Film. Nanomaterials 2022, 12, 1440.
Cao, S.; Xing, Y.; Sun, Y.; Liu, Z.; He, S. Strong Coupling between a Single Quantum Emitter and a Plasmonic Nanoantenna on a Metallic Film. Nanomaterials2022, 12, 1440.
Cao, S.; Xing, Y.; Sun, Y.; Liu, Z.; He, S. Strong Coupling between a Single Quantum Emitter and a Plasmonic Nanoantenna on a Metallic Film. Nanomaterials 2022, 12, 1440.
Abstract
The strong coupling between individual quantum emitters and resonant optical micro/nanocavities is beneficial to understand light and matter interactions. Here we propose a plasmonic nanoantenna placed on a metal film to achieve an ultra-high electric field enhancement in the nanogap and ultra-small optical mode volume. The strong coupling between a single quantum dot and the designed structure is investigated in detail by both numerical simulations and theoretical calculations. When a single QD is inserted into the nanogap of the silver nanoantenna, scattering spectra show remarkably large spectral splitting and typical anti-crossing behavior of the vacuum Rabi splitting, which can be realized in the scattering spectra by varying the nanoantenna thickness. Our work shows a possible way to enhance light-matter interaction at a single quantum emitter limit, which can be useful for future quantum and nanophotonic applications.
Keywords
strong coupling; nanoantenna; single quantum dot
Subject
Physical Sciences, Optics and Photonics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
