Intense Atomic and Molecular Beams via Neon Buffer Gas Cooling

Details Intense Atomic and Molecular Beams via Neon Buffer Gas Cooling Intense Atomic and Molecular Beams via Neon Buffer Gas Cooling

2008-12-11

arxiv.org/abs/0812.2212v1

Physics

Atomic Physics

15 pages, 6 figures

Scientific paper

We realize a continuous guided beam of cold deuterated ammonia with a flux of 3e11 ND3 molecules/s and a continuous free-space beam of cold potassium with a flux of 1e16 K atoms/s. A novel feature of the buffer gas source used to produce these beams is cold neon, which, due to intermediate Knudsen number beam dynamics, produces a forward velocity and low-energy tail that is comparable to much colder helium-based sources. We expect this source to be trivially generalizable to a very wide range of atomic and molecular species with significant vapor pressure below 1000 K. This source has properties that make it a good starting point for laser cooling of molecules or atoms, cold collision studies, trapping, or nonlinear optics in buffer-gas-cooled atomic or molecular gases.

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