99 citations · 490 across the 19 of their papers we have counts for
20 papers
Excitation of subradiant states in atom chains by surface plasmon waves
Giorgio Vimercati, Nicola Piovella
Subradiant states of a finite subwavelength atomic chain in free space offer a powerful resource for photon storage. Yet their preparation and control remain challenging experiment…
Vacuum-induced interference in light scattering by multilevel atomic chains
Aleksei Konovalov, Giovanna Morigi, Nicola Piovella
We investigate cooperative light scattering by an ordered chain of multilevel atoms, which possess two quasi-resonant transitions with parallel dipole moments. Interference between…
Subradiant Decay in 2D and 3D Atomic Arrays
Nicola Piovella, Romain Bachelard
Subradiance is a phenomenon where coupled emitters radiate light at a slower rate than independent ones. While its observation was first reported in disordered cold atom clouds, or…
Subradiance generation in a chain of two-level atoms with a single excitation
Nicola Piovella
Studies of subradiance in a chain N two-level atoms in the single excitation regime focused mainly on the complex spectrum of the effective Hamiltonian, identifying subradiant eige…
Cooperative Decay of N Atoms in a Ring Configuration
Nicola Piovella
We provide an analytic expression of the spectrum of the cooperative decay rate of N two-level atoms regularly distributed on a ring in the single-excitation configuration. The res…
Cooperative decay of an ensemble of atoms in a one-dimensional chain with a single excitation
Nicola Piovella
We propose a new expression of the cooperative decay rate of a one-dimensional chain of N two-level atoms in the single-excitation configuration. From it, the interference nature o…
Breaking of reciprocity and the Pancharatnam-Berry phase for light scattered by a disordered cold atom cloud
P. H. N. Magnani, P. G. S. Dias, M. Frometa +7
Collective effects on the light scattered by disordered media such as Anderson localization and coherent backscattering critically depend on the reciprocity between interfering opt…
Coherent backscattering of inelastic photons from atoms and their mirror images
P. H. Moriya, R. F. Shiozaki, R. Celistrino Teixeira +5
Coherent backscattering is a coherence effect in the propagation of waves through disordered media involving two or more scattering events. Here, we report on the observation of co…
Mode-locked Bloch oscillations in a ring cavity
M. Samoylova, N. Piovella, D. Hunter +3
We present a new technique for stabilizing and monitoring Bloch oscillations of ultracold atoms in an optical lattice under the action of a constant external force. In the proposed…
Fluid description of the cooperative scattering of light by spherical atomic clouds
N. Piovella, R. Bachelard, Ph. W. Courteille
When a cold atomic gas is illuminated by a quasi-resonant laser beam, light-induced dipole-dipole correlations make the scattering of light a cooperative process. Once a fluid desc…
Microscopic theory of photonic band gaps in optical lattices
M. Samoylova, N. Piovella, R. Bachelard +1
We propose a microscopic model to describe the scattering of light by atoms in optical lattices. The model is shown to efficiently capture Bragg scattering, spontaneous emission an…
Cooperativity in light scattering by cold atoms
Tom Bienaime, Romain Bachelard, Nicola Piovella +1
A cloud of cold N two-level atoms driven by a resonant laser beam shows cooperative effects both in the scattered radiation field and in the radiation pressure force acting on the…
Atom and photon measurement in cooperative scattering by cold atoms
Tom Bienaime, Marco Petruzzo, Daniele Bigerni +2
In this paper, we study cooperative scattering of low intensity light by a cloud of N two-level systems. We include the incident laser field driving these two-level systems and com…
Resonances in Mie scattering by an inhomogeneous atomic cloud
Romain Bachelard, Philippe Courteille, Robin Kaiser +1
Despite the quantum nature of the process, collective scattering by dense cold samples of two-level atoms can be interpreted classically describing the sample as a macroscopic obje…
Observation of cooperative Mie scattering from an ultracold atomic cloud
H. Bender, C. Stehle, S. Slama +4
Scattering of light at a distribution of scatterers is an intrinsically cooperative process, which means that the scattering rate and the angular distribution of the scattered ligh…
Experimental perspectives for systems based on long-range interactions
Romain Bachelard, T. Manos, Pierre De Buyl +5
The possibility of observing phenomena peculiar to long-range interactions, and more specifically in the so-called Quasi-Stationary State (QSS) regime is investigated within the fr…
Cooperative Scattering by Cold Atoms
S. Bux, E. Lucioni, H. Bender +8
We have studied the interplay between disorder and cooperative scattering for single scattering limit in the presence of a driving laser. Analytical results have been derived and w…
Observation of a Cooperative Radiation Force in the Presence of Disorder
Tom Bienaime, Simone Bux, Eleonora Lucioni +3
Cooperative scattering of light by an extended object such as an atomic ensemble or a dielectric sphere is fundamentally different from scattering from many point-like scatterers s…
Modification of radiation pressure due to cooperative scattering of light
Philippe Courteille, Simone Bux, Eleonora Lucioni +4
Cooperative spontaneous emission of a single photon from a cloud of N atoms modifies substantially the radiation pressure exerted by a far-detuned laser beam exciting the atoms. On…
Recoil-induced subradiance in a cold atomic gas
M. M. Cola, D. Bigerni, N. Piovella
Subradiance, i.e. the cooperative inhibition of spontaneous emission by destructive interatomic interference, can be realized in a cold atomic sample confined in a ring cavity and…