Doppler cooling thermometry of a multilevel ion in the presence of micromotion

Tomas Sikorsky, Ziv Meir, Nitzan Akerman, Ruti Ben-shlomi, and Roee Ozeri
Phys. Rev. A 96, 012519 – Published 28 July 2017

Abstract

We study the time-dependent fluorescence of an initially hot, multilevel, single atomic ion trapped in a radio-frequency Paul trap during Doppler cooling. We have developed an analytical model that describes the fluorescence dynamics during Doppler cooling which is used to extract the initial energy of the ion. While previous models of Doppler cooling thermometry were limited to atoms with a two-level energy structure and neglected the effect of the trap oscillating electric fields, our model applies to atoms with multilevel energy structure and takes into account the influence of micromotion on the cooling dynamics. This thermometry applies to any initial energy distribution. We experimentally test our model with an ion prepared in coherent, thermal, and Tsallis energy distributions.

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  • Received 30 April 2017

DOI:https://doi.org/10.1103/PhysRevA.96.012519

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Tomas Sikorsky*, Ziv Meir, Nitzan Akerman, Ruti Ben-shlomi, and Roee Ozeri

  • Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel

  • *tomas.sikorsky@weizmann.ac.il

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Vol. 96, Iss. 1 — July 2017

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