13 citations · 45 across the 5 of their papers we have counts for
5 papers
Suppression of Penning ionization by orbital angular momentum conservation
Katrin Dulitz, Tobias Sixt, Jiwen Guan +3
The efficient suppression of Penning-ionizing collisions is a stringent requirement to achieve quantum degeneracy in metastable rare gases. Thus far, such loss processes have been…
Optical Quenching of Metastable Helium Atoms using Excitation to the State
Jiwen Guan, Vivien Behrendt, Pinrui Shen +5
Discharge and electron-impact excitation lead to the production of metastable helium atoms in two metastable states, 2S and 2S. However, many applications require p…
Penning collisions between supersonically expanded metastable helium atoms and laser-cooled lithium atoms
Jonas Grzesiak, Takamasa Momose, Frank Stienkemeier +2
We describe an experimental setup comprised of a discharge source for supersonic beams of metastable helium atoms and a magneto-optical trap (MOT) for ultracold lithium atoms that…
Production of rotationally cold methyl radicals in pulsed supersonic beams
Jonas Grzesiak, Manish Vashishta, Pavle Djuricanin +4
We present a comparison of two technically distinct methods for the generation of rotationally cold, pulsed supersonic beams of methyl radicals (CH3): a plate discharge source oper…
A simple photoionization scheme for characterizing electron and ion spectrometers
A. Wituschek, J. von Vangerow, J. Grzesiak +2
We present a simple diode laser-based photoionization scheme for generating electrons and ions with well-defined spatial and energetic (<2 eV) structures. This scheme can easily be…