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Article Dans Une Revue The European Physical Journal D : Atomic, molecular, optical and plasma physics Année : 2022

Efficient 2D molasses cooling of a cesium beam using a blue detuned top-hat beam

M. Reveillard
  • Fonction : Auteur
M. Viteau
  • Fonction : Auteur
G. Guiraud
  • Fonction : Auteur
N. Traynor
  • Fonction : Auteur
B. Desruelle
  • Fonction : Auteur
D. Comparat

Résumé

We have performed a 2D blue detuned Sisyphus collimation of a cesium beam. Compared to a red detuned Doppler transverse molasses cooling, the setup was found very advantageous because of its faster cooling time allowing a short (1 cm ) cooling length and thus finally a denser atomic beam. A fibered laser was developed delivering up to 500mW fiber coupled optical power. A 2D collimation was realized but this can be done only if the two cooling zones were not overlapping. A beam density enhancement of more than 10 was observed. We found that a simple top-hat beam was more efficient than a Gaussian one. Similar cooling applies to other atom species and leads to a simple method to produce bright collimated atomic beams.
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Dates et versions

hal-04240953 , version 1 (16-10-2023)

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Citer

M. Reveillard, M. Viteau, G. Santarelli, B. Battelier, G. Guiraud, et al.. Efficient 2D molasses cooling of a cesium beam using a blue detuned top-hat beam. The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2022, 76 (2), pp.35. ⟨10.1140/epjd/s10053-022-00361-2⟩. ⟨hal-04240953⟩
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