Intense Atomic and Molecular Beams Via Neon Buffer-gas Cooling

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Intense Atomic and Molecular Beams Via Neon Buffer-gas Cooling

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Title: Intense Atomic and Molecular Beams Via Neon Buffer-gas Cooling
Author: Patterson, David; Rasmussen, Julia Hege; Doyle, John M.

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Citation: Patterson, David, Julia Rasmussen, and John M. Doyle. 2009. Intense atomic and molecular beams via neon buffer-gas cooling. New Journal of Physics 11(5): 055018.
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Abstract: We realize a continuous, intense, cold molecular and atomic beam source based on buffer-gas cooling. Hot vapor (up to 600 K) from an oven is mixed with cold (15 K) neon buffer gas, and then emitted into a high-flux beam. The novel use of cold neon as a buffer gas produces a forward velocity distribution 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. The 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. A continuous guided beam of cold deuterated ammonia with a flux of 3×10\(^{11}\) ND\(_{3}\) molecules s\(^{−1}\) and a continuous free-space beam of cold potassium with a flux of 1×10\(^{16}\) K atoms s\(^{−1}\) are realized.
Published Version: doi:10.1088/1367-2630/11/5/055018
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