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Coherent Backscattering with Nonlinear Atomic Scatterers
T. Wellens, B. Gremaud, D. Delande +1
We study coherent backscattering of a quasi-monochromatic laser by a dilute gas of cold two-level atoms. We consider the perturbative regime of weak intensities, where nonlinear ef…
Semi-classical analysis of real atomic spectra beyond Gutzwiller's approximation
Benoît Grémaud
Real atomic systems, like the hydrogen atom in a magnetic field or the helium atom, whose classical dynamics are chaotic, generally present both discrete and continuous symmetries.…
Bloch oscillations of ultracold atoms: a tool for a metrological determination of
Remy Battesti, Pierre Clade, Saida Guellati-Khelifa +5
We use Bloch oscillations in a horizontal moving standing wave to transfer a large number of photon recoils to atoms with a high efficiency (99.5% per cycle). By measuring the phot…
Coherent backscattering of light by atoms in the saturated regime
T. Wellens, B. Gremaud, D. Delande +1
We present the first calculation of coherent backscattering with inelastic scattering by saturated atoms. We consider the scattering of a quasi-monochromatic laser pulse by two dis…