Light-matter excitations in the ultra-strong coupling regime - Laboratoire Matériaux et Phénomènes Quantiques Accéder directement au contenu
Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2009

Light-matter excitations in the ultra-strong coupling regime

Résumé

In a microcavity, light-matter coupling is quantified by the vacuum Rabi frequency $\Omega_R$. When $\Omega_R$ is larger than radiative and non-radiative loss rates, the system eigenstates (polaritons) are linear superposition of photonic and electronic excitations, a condition actively investigated in diverse physical implementations. Recently, a quantum electrodynamic regime (ultra-strong coupling) was predicted when $\Omega_R$ becomes comparable to the transition frequency. Here we report unambiguous signatures of this regime in a quantum-well intersubband microcavity. Measuring the cavity-polariton dispersion in a room-temperature linear optical experiment, we directly observe the anti-resonant light-matter coupling and the photon-energy renormalization of the vacuum field.
Fichier principal
Vignette du fichier
arttest.pdf (497.48 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00315208 , version 1 (27-08-2008)
hal-00315208 , version 2 (28-08-2008)
hal-00315208 , version 3 (10-03-2009)

Identifiants

Citer

Aji A. Anappara, Simone de Liberato, Alessandro Tredicucci, Cristiano Ciuti, Giorgio Biasiol, et al.. Light-matter excitations in the ultra-strong coupling regime. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2009, 79, pp.201303. ⟨hal-00315208v3⟩
187 Consultations
131 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More