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The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules

Hutzler, Nicholas R. and Lu, Hsin-I and Doyle, John M. (2012) The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules. Chemical Reviews, 112 (9). pp. 4803-4827. ISSN 0009-2665. doi:10.1021/cr200362u.

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Beams of atoms and molecules are stalwart tools for spectroscopy and studies of collisional processes. The supersonic expansion technique can create cold beams of many species of atoms and molecules. However, the resulting beam is typically moving at a speed of 300−600 m s^(−1) in the laboratory frame and, for a large class of species, has insufficient flux (i.e., brightness) for important applications. In contrast, buffer gas beams can be a superior method in many cases, producing cold and relatively slow atoms and molecules (see Figure 1) in the laboratory frame with high brightness and great versatility. There are basic differences between supersonic and buffer gas cooled beams regarding particular technological advantages and constraints. At present, it is clear that not all of the possible variations on the buffer gas method have been studied. In this review, we will present a survey of the current state of the art in buffer gas beams, and explore some of the possible future directions that these new methods might take.

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Hutzler, Nicholas R.0000-0002-5203-3635
Additional Information:© 2012 American Chemical Society. Received 14 September 2011 Published online 9 May 2012 Published in print 12 September 2012 Thanks to John Barry, Sid Cahn, Dave DeMille, Richard Hedricks, Emil Kirilov, Dave Patterson, Dave Rahmlow, Julia Rasmussen, and Joe Smallman for helping us gather information for this paper and to Colin Connolly and Elizabeth Petrik for feedback on the manuscript.
Issue or Number:9
Record Number:CaltechAUTHORS:20170831-132829218
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Official Citation:The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules Nicholas R. Hutzler, Hsin-I Lu, and John M. Doyle Chemical Reviews 2012 112 (9), 4803-4827 DOI: 10.1021/cr200362u
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81022
Deposited By: Ruth Sustaita
Deposited On:05 Sep 2017 17:50
Last Modified:15 Nov 2021 19:40

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