64 citations · 132 across the 7 of their papers we have counts for
6 papers · 1 filter
Heating and cooling of electrons in an ultracold neutral plasma using Rydberg atoms
E. V. Crockett, R. C. Newell, F. Robicheaux +1
We have experimentally demonstrated both heating and cooling of electrons in an ultracold neutral plasma (UNP) by embedding Rydberg atoms into the plasma soon after its creation. W…
Microwave-optical two-photon excitation of Rydberg states
D. A. Tate, T. F. Gallagher
We report efficient microwave-optical two photon excitation of Rb Rydberg atoms in a magneto optical trap. This approach allows the excitation of normally inaccessible states and p…
Expansion of an ultracold Rydberg plasma
Gabriel T. Forest, Yin Li, Edwin D. Ward +2
We report a systematic experimental and numerical study of the expansion of ultra-cold Rydberg plasmas. Specifically, we have measured the asymptotic expansion velocities, , o…
What is the temperature of an ultra-cold Rydberg plasma?
Gabriel T. Forest, Yin Li, Edwin D. Ward +2
We have measured the asymptotic expansion velocities of ultra-cold plasmas (UNPs) which evolve from cold, dense, samples of Rydberg rubidium atoms using ion time-of-flight spectros…
Radiative lifetime measurements of rubidium Rydberg states
Drew B. Branden, Tamas Juhasz, Tatenda Mahlokozera +5
We have measured the radiative lifetimes of ns, np and nd Rydberg states of rubidium in the range 28 < n < 45. To enable long-lived states to be measured, our experiment uses slow-…
Ionization in a frozen Rydberg gas with attractive or repulsive potentials
Matthieu Viteau, Amodsen Chotia, Daniel Comparat +3
We report clear evidence of the role of dipole-dipole interaction in Penning ionization of Rydberg atoms, leading to the formation of an ultracold plasma. Penning ionization of np…