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Propagation of light through small clouds of cold interacting atoms
S. Jennewein, Y. R. P. Sortais, J. -J. Greffet +1
We demonstrate experimentally that a cloud of cold atoms with a size comparable to the wavelength of light can induce large group delays on a laser pulse when the laser is tightly…
Coherent scattering of near-resonant light by a Dense Microscopic Cold Atomic cloud
S. Jennewein, M. Besbes, N. J. Schilder +6
We measure the coherent scattering of light by a cloud of laser-cooled atoms with a size comparable to the wavelength of light. By interfering a laser beam tuned near an atomic res…
Polaritonic modes in a dense cloud of atoms
Nick Schilder, Christophe Sauvan, Jean-Paul Hugonin +4
We analyze resonant light scattering by an atomic cloud in a regime where near-field interactions between scatterers cannot be neglected. We first use a microscopic approach and ca…
Measurement of the Angular Dependence of the Dipole-Dipole Interaction Between Two Individual Rydberg Atoms at a Förster Resonance
Sylvain Ravets, Henning Labuhn, Daniel Barredo +2
We measure the angular dependence of the resonant dipole-dipole interaction between two individual Rydberg atoms with controlled relative positions. By applying a combination of st…