Optical Resonance Shifts in the Fluorescence of Thermal and Cold Atomic Gases

S. Jenkins (1) , J. Ruostekoski (1) , J. Javanainen (2) , R. Bourgain (3) , Stephan Jennewein (3) , Yvan R. P. Sortais (3) , Antoine Browaeys (3)

1 Mathematical Sciences
2 UCONN - University of Connecticut
3 Laboratoire Charles Fabry / Optique Quantique

We show that the resonance shifts in the fluorescence of a cold gas of rubidium atoms substantially differ from those of thermal atomic ensembles that obey the standard continuous medium electrodynamics. The analysis is based on large-scale microscopic numerical simulations and experimental measurements of the resonance shifts in a steady-state response in light propagation.

Domaines: Physique Atomique [physics.atom-ph]

S. Jenkins, J. Ruostekoski, J. Javanainen, R. Bourgain, Stephan Jennewein, et al.. Optical Resonance Shifts in the Fluorescence of Thermal and Cold Atomic Gases. Physical Review Letters, 2016, 116 (18), pp.183601. ⟨10.1103/PhysRevLett.116.183601⟩. ⟨hal-01688956⟩