Direct Frequency Comb Spectroscopy of Trapped Ions

A.L. Wolf, S.A. van den Berg, W.M.G. Ubachs, K.S.E. Eikema

Research output: Contribution to JournalArticleAcademicpeer-review


Direct frequency comb spectroscopy of trapped ions is demonstrated for the first time. It is shown that the 4sS1/22-4pP3/22 transition in calcium ions can be excited directly with a frequency comb laser that is up-converted to 393 nm. Detection of the transition is performed using a shelving scheme to suppress the background signal from nonresonant comb modes. The measured transition frequency of f=761905012.7(0.5)MHz presents an improvement in accuracy of more than 2 orders of magnitude. © 2009 The American Physical Society.
Original languageEnglish
Pages (from-to)223901
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2009


Dive into the research topics of 'Direct Frequency Comb Spectroscopy of Trapped Ions'. Together they form a unique fingerprint.

Cite this