Observation of single collisionally cooled trapped ions in a buffer gas

M. Green et al.
Phys. Rev. A 76, 023404 – Published 9 August 2007

Abstract

Individual Ba ions are trapped in a gas-filled linear ion trap and observed with a high signal-to-noise ratio by resonance fluorescence. Single-ion storage times of 5min (1min) are achieved using He (Ar) as a buffer gas at pressures in the range 8×1054×103torr. Trap dynamics in buffer gases are experimentally studied in the simple case of single ions. In particular, the cooling effects of light gases such as He and Ar and the destabilizing properties of heavier gases such as Xe are studied. A simple model is offered to explain the observed phenomenology.

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  • Received 15 February 2007

DOI:https://doi.org/10.1103/PhysRevA.76.023404

©2007 American Physical Society

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Vol. 76, Iss. 2 — August 2007

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