Erika Cortese
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View article: Sculpting ultrastrong light–matter coupling through spatial matter structuring
Sculpting ultrastrong light–matter coupling through spatial matter structuring Open
The central theme of cavity quantum electrodynamics is the coupling of a single optical mode with a single matter excitation, leading to a doublet of cavity polaritons which govern the optical properties of the coupled structure. Especiall…
View article: Engineered planar plasmonic reflector for polaritonic mode confinement [Invited]
Engineered planar plasmonic reflector for polaritonic mode confinement [Invited] Open
It was recently demonstrated that, in deep subwavelength gap resonators coupled to two-dimensional electron gases, propagating plasmons can lead to energy leakage and prevent the formation of polaritonic resonances. This process, akin to L…
View article: Sculpting ultrastrong light-matter coupling through spatial matter structuring
Sculpting ultrastrong light-matter coupling through spatial matter structuring Open
The central theme of cavity quantum electrodynamics is the coupling of a single optical mode with a single matter excitation, leading to a doublet of cavity polaritons which govern the optical properties of the coupled structure. Especiall…
View article: An engineered planar plasmonic reflector for polaritonic mode confinement
An engineered planar plasmonic reflector for polaritonic mode confinement Open
It was recently demonstrated that, in deep subwavelength gap resonators coupled to two-dimensional electron gases, coupling to propagating plasmons can lead to energy leakage and prevent the formation of polaritonic resonances. This proces…
View article: Real-space nanophotonic field manipulation using non-perturbative light–matter coupling
Real-space nanophotonic field manipulation using non-perturbative light–matter coupling Open
The achievement of large values of the light–matter coupling in nanoengineered photonic structures can lead to multiple photonic resonances contributing to the final properties of the same hybrid polariton mode. We develop a general theory…
View article: Positronium density measurements using polaritonic effects
Positronium density measurements using polaritonic effects Open
Recent experimental advances in Positronium (Ps) physics have made it possible to produce dense Ps ensembles in which Ps-Ps interactions may occur, leading to the production of Ps$_2$ molecules and paving the way to the realization of a Ps…
View article: Perspective on real-space nanophotonic field manipulation using non-perturbative light-matter coupling
Perspective on real-space nanophotonic field manipulation using non-perturbative light-matter coupling Open
The achievement of large values of the light-matter coupling in nanoengineered photonic structures can lead to multiple photonic resonances contributing to the final properties of the same hybrid polariton mode. We develop a general theory…
View article: Exact solution of polaritonic systems with arbitrary light and matter frequency-dependent losses
Exact solution of polaritonic systems with arbitrary light and matter frequency-dependent losses Open
In this paper, we perform the exact diagonalization of a light–matter strongly coupled system taking into account arbitrary losses via both energy dissipation in the optically active material and photon escape out of the resonator. This al…
View article: Non-locality and single meta-atom spectroscopy in THz Landau polaritons
Non-locality and single meta-atom spectroscopy in THz Landau polaritons Open
We will discuss, theoretically and experimentally, the existence of a limit to the possibility of arbitrarily increasing electromagnetic confinement in polaritonic systems, where strongly sub-wavelength fields can excite a continuum of hig…
View article: Polaritonic non-locality in ultrastrong light-matter coupling
Polaritonic non-locality in ultrastrong light-matter coupling Open
Sub-wavelength electromagnetic field localization has been central in photonic research in the last decade, allowing to enhance sensing capabilities as well as increasing the coupling between photons and material excitations. The ultrastro…
View article: Tuning materials' properties by non-perturbative cavity quantum electrodynamics
Tuning materials' properties by non-perturbative cavity quantum electrodynamics Open
When in a quantum optical system the coupling between matter and cavity mode becomes comparable to the bare excitation frequency, we enter a non-perturbative coupling regime, as perturbation theory fails describing the system’s dynamics. W…
View article: Strong coupling of ionizing transitions
Strong coupling of ionizing transitions Open
In cavity quantum electrodynamics, strong light–matter coupling is normally observed between a photon mode and a discrete optically active transition. In the present work we demonstrate that strong coupling can also be achieved using ioniz…
View article: Strong coupling of ionising transitions
Strong coupling of ionising transitions Open
We demonstrate that a ionising transition can be strongly coupled to a photonic resonator, leading to the appearance of a discrete optically active polaritonic resonance below the ionisation threshold. The matter component of such hybrid e…
View article: Polariton spectrum of the Dicke-Ising model
Polariton spectrum of the Dicke-Ising model Open
The Dicke-Ising model describes cavity quantum electrodynamics setups in which dipoles couple not only with the photonic cavity field but also to each other through dipole-dipole interaction. In this work we diagonalise such a model in ter…
View article: Publisher’s Note: Collective Optomechanical Effects in Cavity Quantum Electrodynamics [Phys. Rev. Lett. <b>119</b>, 043604 (2017)]
Publisher’s Note: Collective Optomechanical Effects in Cavity Quantum Electrodynamics [Phys. Rev. Lett. <b>119</b>, 043604 (2017)] Open
Received 11 August 2017DOI:https://doi.org/10.1103/PhysRevLett.119.079902© 2017 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasCavity quantum electrodynamicsSuperradiance & subradianceThermodynamicsTechniquesDicke m…
View article: Collective Optomechanical Effects in Cavity Quantum Electrodynamics
Collective Optomechanical Effects in Cavity Quantum Electrodynamics Open
We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of rota…
View article: Cavity quantum electrothermodynamics with rotational degrees of freedom
Cavity quantum electrothermodynamics with rotational degrees of freedom Open
We investigate a cavity quantum electrodynamic effect, where the alignment of two-dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of rota…