posted on 2024-02-26, 13:10authored byPavel Tonkaev, Evgeniia Grechaninova, Ivan Iorsh, Federico Montanarella, Yuri Kivshar, Maksym V. Kovalenko, Sergey Makarov
Meta-atoms
are the building blocks of metamaterials, which are
employed to control both generation and propagation of light as well
as provide novel functionalities of localization and directivity of
electromagnetic radiation. In many cases, simple dielectric or metallic
resonators are employed as meta-atoms to create different types of
electromagnetic metamaterials. Here, we fabricate and study supercrystal meta-atoms composed of coupled perovskite quantum
dots. We reveal that these multiscale structures exhibit specific
emission properties, such as spectrum splitting and polaritonic effects.
We believe that such multiscale supercrystal meta-atoms will provide
novel functionalities in the design of many novel types of active
metamaterials and metasurfaces.