Professor Ifan Hughes i.g.hughes@durham.ac.uk
Professor
Velocity selection in a Doppler-broadened ensemble of atoms interacting with a monochromatic laser beam
Hughes, Ifan G.
Authors
Abstract
There is extensive use of monochromatic lasers to select atoms with a narrow range of velocities in many atomic physics experiments. For the commonplace situation of the inhomogeneous Doppler-broadened (Gaussian) linewidth exceeding the homogeneous (Lorentzian) natural linewidth by typically two orders of magnitude, a substantial narrowing of the velocity class of atoms interacting with the light can be achieved. However, this is not always the case, and here we show that for a certain parameter regime there is essentially no selection – all of the atoms interact with the light in accordance with the velocity probability density. An explanation of this effect is provided, emphasizing the importance of the long tail of the constituent Lorentzian distribution in a Voigt profile.
Citation
Hughes, I. G. (2018). Velocity selection in a Doppler-broadened ensemble of atoms interacting with a monochromatic laser beam. Journal of Modern Optics, 65(5-6), 640-647. https://doi.org/10.1080/09500340.2017.1328749
Journal Article Type | Article |
---|---|
Acceptance Date | May 6, 2017 |
Online Publication Date | May 22, 2017 |
Publication Date | Mar 30, 2018 |
Deposit Date | May 17, 2017 |
Publicly Available Date | Mar 28, 2024 |
Journal | Journal of Modern Optics |
Print ISSN | 0950-0340 |
Electronic ISSN | 1362-3044 |
Publisher | Taylor and Francis Group |
Peer Reviewed | Peer Reviewed |
Volume | 65 |
Issue | 5-6 |
Pages | 640-647 |
DOI | https://doi.org/10.1080/09500340.2017.1328749 |
Files
Accepted Journal Article
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Copyright Statement
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Modern Optics on 22/05/2017, available online at: http://www.tandfonline.com/10.1080/09500340.2017.1328749.
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