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Quantum Simulation

Absorption imaging of a quasi 2D gas: a multiple scattering analysis

arXiv
Authors: L. Chomaz, L. Corman, T. Yefsah, R. Desbuquois, J. Dalibard

Year

2011

Paper ID

29229

Status

Preprint

Abstract Read

~2 min

Abstract Words

112

Citations

N/A

Abstract

Absorption imaging with quasi-resonant laser light is a commonly used technique to probe ultra-cold atomic gases in various geometries. Here we investigate some non-trivial aspects of this method when it is applied to in situ diagnosis of a quasi two-dimensional 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 three-dimensional result (Beer-Lambert law) and outline the specific features of the two-dimensional case.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • Absorption imaging with quasi-resonant laser light is a commonly used technique to probe ultra-cold atomic gases in various geometries.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1112.3170 [2] arXiv https://arxiv.org/abs/1112.3170 [3] Publisher https://arxiv.org/abs/1112.3170

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