Efficient magneto-optical trapping of a metastable helium gas

Details Efficient magneto-optical trapping of a metastable helium gas Efficient magneto-optical trapping of a metastable helium gas

2001-03-20

arxiv.org/abs/physics/0103064v1

Physics

Atomic Physics

12 pages, 7 figures, LateX

Scientific paper

10.1051/epjap:2001140

This article presents a new experiment aiming at BEC of metastable helium atoms. It describes the design of a high flux discharge source of atoms and a robust laser system using a DBR diode coupled with a high power Yb doped fiber amplifier for manipulating the beam of metastable atoms. The atoms are trapped in a small quartz cell in an extreme high vacuum. The trapping design uses an additional laser (repumper) and allows the capture of a large number of metastable helium atoms (approximately $10^9$) in a geometry favorable for loading a tight magnetostatic trap.

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