Material properties in the strong light-matter coupling regime

Informazioni relative al progetto

MaP

ID dell’accordo di sovvenzione: 882173

DOI

10.3030/882173

Progetto concluso il 31 Dicembre 2021

Data della firma CE 18 Marzo 2020

Data di avvio 1 Aprile 2021

Data di completamento 31 Marzo 2023

Finanziato da

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Costo totale

€ 184 707,84

Contributo UE

€ 184 707,84

Coordinato da

UNIVERSITE DE STRASBOURG
France

Periodic Reporting for period 1 - MaP (Material properties in the strong light-matter coupling regime)

Periodo di rendicontazione: 2021-04-01 al 2023-03-31

Sintesi del contesto e degli obiettivi generali del progetto

Light can be confined into a small space by using two mirrors facing each other. Our daily experience would suggest that we can freely choose how much light should bounce back and forth between the mirrors. Especially, we may also choose to have no light at all. The theory of Quantum electrodynamics however tells us, that a minimum amount of light energy (zero-point energy) must always remain in between the mirrors. In recent years, it has become clear, that this zero-point energy can change numerous properties of materials that are placed in between those mirrors – without requiring any energy input. This thus unlocks an entirely new toolbox to engineer electrical and chemical material properties. In this project, we focus on engineering electrical properties of materials, in order to obtain new electrical devices (transistors) that possess functionalities that cannot be achieved by other means.

Lavoro eseguito dall’inizio del progetto fino alla fine del periodo coperto dalla relazione e principali risultati finora ottenuti

During this first part of the project, a new type of device has been designed and processed that allows to perform electrical transport measurements through a material that is simulatanously ultrastrongly coupled to a plasmonic metasurface. The metasurface is also known as a Pancharatnam-Berry phase metasurface, which means that the corrugations on the surface are rotated along one direction, introducing a local rotation of the coordinate system. During the experiments, we have noticed, that the behaviour of the metasurface is far more complex and interesting than previously discussed by others researchers in the field. We hence saw the need to investigate the metasurface more closely. To this end, we built a new optical setup needed to adequatly characterize the unusualy complex optical spin-orbit interactions of light with the metasurface. The results are in the process of being written into a paper form and will be published in a peer-reviewed journal in the coming months.

Progressi oltre lo stato dell’arte e potenziale impatto previsto (incluso l’impatto socioeconomico e le implicazioni sociali più ampie del progetto fino ad ora)

The results beyond the state of the art will be published in the coming months in a peer reviewed journal.

Measured optical properties of the light-matter coupled system