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Pump-probe spectroscopy and velocimetry of cold atoms in a slow beam

Auteur(s)
Di Domenico, Gianni 
Institut de physique 
Editeur(s)
Mileti, Gaetano 
Institut de physique 
Thomann, Pierre 
Institut de physique 
Date de parution
2001
In
Physical Review A, American Physical Society (APS), 2001/64/043408/1-5
Résumé
In this paper we report on the first purely “pump-probe” nonlinear laser spectroscopy results in a slow atomic beam. We have observed Raman, Rayleigh, and recoil-induced resonances (RIR) in a continuous beam of slow and cold cesium atoms extracted from a two-dimensional (2D) magneto-optical-trap (MOT) with the moving molasses technique. The RIR enabled us to measure the velocity distribution, therefore the average speed (0.6–4 m/s) and temperature (50–500 μK) of the atomic beam. Compared to time of flight, this technique has the advantage of being local, more sensitive in the low-velocity regime (v<1 m/s), and it gives access to transverse velocities and temperatures. Moreover, it may be extended to measure atomic velocities in the 2D MOT source of the atomic beam.
URI
https://libra.unine.ch/handle/123456789/10606
DOI
10.1103/PhysRevA.64.043408
Autre version
http://dx.doi.org/10.1103/PhysRevA.64.043408
Type de publication
Resource Types::text::journal::journal article
Dossier(s) à télécharger
 main article: Di_Domenico_G._-_Pump-probe_spectroscopy_and_velocimetry_of_cold_20120223.pdf (151.54 KB)
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