Absorption imaging of a quasi-two-dimensional gas : a multiple scattering analysis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue New Journal of Physics Année : 2012

Absorption imaging of a quasi-two-dimensional gas : a multiple scattering analysis

L. Corman
  • Fonction : Auteur
T. Yefsah
  • Fonction : Auteur
R. Desbuquois
  • Fonction : Auteur
J. Dalibard

Résumé

Absorption imaging with quasi-resonant laser light is a commonly used technique for probing ultra-cold atomic gases in various geometries. In this paper, we investigate some non-trivial aspects of this method when applying the method to in situ diagnosis of a quasi-two-dimensional (2D) gas. Using Monte Carlo simulations we study the modification of the absorption cross-section of a photon when it undergoes multiple scattering in the gas. We determine the variations of the optical density with various parameters, such as the detuning of the light from the atomic resonance and the thickness of the gas. We compare our results to the known 3D result (the Beer–Lambert law) and outline the specific features of the 2D case.

Dates et versions

hal-03740662 , version 1 (29-07-2022)

Identifiants

Citer

L. Chomaz, L. Corman, T. Yefsah, R. Desbuquois, J. Dalibard. Absorption imaging of a quasi-two-dimensional gas : a multiple scattering analysis. New Journal of Physics, 2012, 14 (5), pp.055001. ⟨10.1088/1367-2630/14/5/055001⟩. ⟨hal-03740662⟩
9 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More