Doppler Cooling Trapped Ions with a UV Frequency Comb

Josue Davila-Rodriguez, Akira Ozawa, Theodor W. Hänsch, and Thomas Udem
Phys. Rev. Lett. 116, 043002 – Published 26 January 2016

Abstract

We demonstrate Doppler cooling of trapped magnesium ions using a frequency comb at 280 nm obtained from a frequency tripled Ti:sapphire laser. A comb line cools on the 3s1/23p3/2 transition, while the nearest blue-detuned comb line contributes negligible heating. We observe the cooling-heating transition and long-term cooling of ion chains with several sympathetically cooled ions. Spatial thermometry shows that the ion is cooled to near the Doppler limit. Doppler cooling with frequency combs has the potential to open many additional atomic species to laser cooling by reaching further into the vacuum and extreme ultraviolet via high-harmonic generation and by providing a broad bandwidth from which multiple excitation sidebands can be obtained.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 8 October 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.043002

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Josue Davila-Rodriguez*, Akira Ozawa, Theodor W. Hänsch, and Thomas Udem

  • Max-Planck-Institute for Quantum Optics Hans-Kopfermann-Straße 1, Garching 81789, Germany

  • *josuedavila@gmail.com
  • akira.ozawa@mpq.mpg.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 116, Iss. 4 — 29 January 2016

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×