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Precision spectroscopy technique for dipole-allowed transitions in laser-cooled ions

journal contribution
posted on 2023-06-08, 23:06 authored by Amy Gardner, Kevin Sheridan, William Groom, Nicolas Seymour-Smith, Matthias KellerMatthias Keller
In this paper , we present a technique for the precise measurement of electric dipole-allowed transitions in trapped ions. By applying a probe and a cooling laser in quick succession, the full transition can be probed without causing distortion from heating the ion. In addition, two probes can be utilized to measure a dispersion-like signal, which is well suited to stabilizing the laser to the transition. We have fully characterized the parameters for the measurement and find that it is possible to measure the line center to better than 100 kHz with an interrogation time of 30 s. The long-term stability of the spectroscopy signal is determined by employing two independent ion trap systems. The first ion trap is used to stabilize the spectroscopy laser. The second ion trap is then employed to measure the stability by continuously probing the transition at two frequencies. From the Allan variance, we obtained a frequency instability of 1·10?¹° for an interrogation time of 1,000 s.

History

Publication status

  • Published

Journal

Applied Physics B

ISSN

0946-2171

Publisher

Springer Verlag

Issue

2

Volume

117

Page range

755-762

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2015-11-10

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