Sympathetic cooling of molecular ions in a surface-electrode ion trap

Mokhberi, Athar and Willitsch, Stefan. (2014) Sympathetic cooling of molecular ions in a surface-electrode ion trap. Physical Review A, 90 (2). 023402.

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Official URL: http://edoc.unibas.ch/dok/A6337975

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We report the sympathetic cooling and Coulomb crystallization of molecular ions above the surface of an ion-trap chip. N+2 and CaH+ ions were confined in a surface-electrode radio-frequency (rf) ion trap and cooled by the interaction with laser-cooled Ca+ ions to secular translational temperatures in the millikelvin range. The configuration of trapping potentials generated by the surface electrodes enabled the formation of planar bicomponent Coulomb crystals and the spatial separation of the molecular from the atomic ions on the chip. The structural and thermal properties of the Coulomb crystals were characterized using molecular dynamics simulations. The present study extends chip-based trapping techniques to cold molecular ions with potential applications in mass spectrometry, chemistry, quantum information science, and spectroscopy.
Faculties and Departments:05 Faculty of Science > Departement Chemie > Chemie > Chemische Physik (Willitsch)
UniBasel Contributors:Willitsch, Stefan
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:04 Jun 2018 08:20
Deposited On:06 Feb 2015 09:59

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