Laser-induced-fluorescence imaging of a spin-polarized ultracold neutral plasma in a magnetic field

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dc.citation.articleNumber013108
dc.citation.issueNumber1
dc.citation.journalTitlePhysical Review A
dc.citation.volumeNumber105
dc.contributor.authorGorman, G.M.
dc.contributor.authorWarrens,M.K.
dc.contributor.authorBradshaw, S.J.
dc.contributor.authorKillian, T.C.
dc.date.accessioned2022-03-07T16:09:36Z
dc.date.available2022-03-07T16:09:36Z
dc.date.issued2022
dc.description.abstractWe report Doppler-sensitive laser-induced-fluorescence (LIF) imaging of an ultracold neutral plasma in a magnetic field. Local values of ion density, hydrodynamic fluid velocity, temperature, and spin polarization are obtained using a fluorescence model based on velocity-resolved rate equations (REs) including the transfer of ions between states due to laser coupling and spontaneous emission. The RE approach captures optical pumping of ions into states that are not driven by the LIF excitation laser, and this is validated with experimental data. Combined molecular-dynamics and quantum-trajectories simulations verify that velocity-changing collisions have a negligible impact on the state population evolution for typical experimental conditions. Relative intensities of Zeeman components of the LIF spectra provide clear evidence that the ions are electron-spin-polarized when created by photoionization of magnetically trapped 88Sr atoms. This probe opens many possibilities for studying thermal transport and the equilibration of neutral plasmas in overlapping regimes of strong coupling and magnetization.
dc.identifier.citationGorman, G.M., Warrens,M.K., Bradshaw, S.J., et al.. "Laser-induced-fluorescence imaging of a spin-polarized ultracold neutral plasma in a magnetic field." <i>Physical Review A,</i> 105, no. 1 (2022) American Physical Society: https://doi.org/10.1103/PhysRevA.105.013108.
dc.identifier.doihttps://doi.org/10.1103/PhysRevA.105.013108
dc.identifier.urihttps://hdl.handle.net/1911/112015
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use."
dc.titleLaser-induced-fluorescence imaging of a spin-polarized ultracold neutral plasma in a magnetic field
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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