Understanding strong cooperative optical responses in dense and cold atomic ensembles is
vital for fundamental science and emerging quantum technologies. Methodologies for …

By utilizing strong optical resonant interactions in arrays of atoms with electric dipole
transitions, we show how to synthesize collective optical responses that correspond to those …

We show how an initial localized radiative excitation in a two-dimensional array of cold
atoms can be converted into highly directional coherent emission of light by protecting the …

Atoms subject to weak coherent incident light can be treated as coupled classical linear
oscillators, supporting subradiant and superradiant collective excitation eigenmodes. We …

We analyze the scattering of light from dipolar emitters whose disordered positions exhibit
correlations induced by static, long-range dipole-dipole interactions. The quantum …

We report investigation of near-resonance light scattering from a cold and dense atomic gas
of Rb 87 atoms. Measurements are made for probe frequencies tuned near the F= 2→ F …

We observe a density-dependent collective suppression of optical pumping between the
hyperfine ground states in an array of submicrometer-sized clouds of dense and cold …

A brief perspective on light scattering in dense and cold atomic rubidium is presented. We
particularly focus on the influence of auxiliary applied fields on the system response to a …

We study the cold collisions of mixed atoms in an optical dipole trap (ODT), which are
loaded from a dark magneto-optical trap (MOT). A comprehensive, phenomenological rate …

Cette thèse présente une étude expérimentale des modifications des propriétés de diffusion
résonante de la lumière par des nuages mésoscopiques de rubidium 87 froids dont la …