Quantifying the role of thermal motion in free-space light-atom interaction
arXiv:1611.08048 · doi:10.1103/PhysRevA.95.043809
Abstract
We demonstrate 17.7(1)% extinction of a weak coherent field by a single atom. We observe a shift of the resonance frequency and a decrease in interaction strength with the external field when the atom, initially at 21(1) K, is heated by the recoil of the scattered photons. Comparing to a simple model, we conclude that the initial temperature reduces the interaction strength by less than 10%.
6 pages, 6 figures
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