Near-resonance Light Scattering from a High-density, Ultracold Atomic $^{87}$Rb Gas

Details Near-resonance Light Scattering from a High-density, Ultracold Atomic $^{87}$Rb Gas Near-resonance Light Scattering from a High-density, Ultracold Atomic $^{87}$Rb Gas

2009-09-07

arxiv.org/abs/0909.1133v2

Physics

Quantum Physics

10 pages, 11 figures

Scientific paper

We report experimental investigation of hyperfine optical pumping and near resonance light scattering from a high-density and ultracold atomic $^{87}$Rb gas. The atomic sample, having a peak density $\sim 5\cdot10^{13}$ atoms/cm$^{3}$, temperature $\sim$ 65 $\mu$K and initially prepared in the F = 1 lower energy $^{87}$Rb hyperfine component, is optically pumped to the higher energy F = 2 hyperfine level. Measurements are made of the transient hyperfine pumping process and of the time evolution of scattering of near resonance probe radiation on the $F = 2 \to F' = 3$ transition. Features of the density, detuning, and probe laser intensity dependence of the signals are attributed to the high peak density and consequent large optical depth of the samples.

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