Trapped ultracold molecular ions
Candidates for an optical molecular clock for a fundamental physics mission in space
Abstract
Narrow ro-vibrational transitions in ultracold molecules are excellent candidates for frequency references in the near-IR to visible spectral domain and interesting systems for fundamental tests of physics, in particular for a satellite test of the gravitational redshift of clocks. We have performed laser spectroscopy of several ro-vibrational overtone transitions ν = 0 → ν = 4 in HD+ ions at around 1.4 μm. 1+1 REMPD was used as a detection method, followed by measurement of the number of remaining molecules. The molecular ions were stored in a linear radiofrequency trap and cooled to millikelvin temperatures, by sympathetic cooling using laser-cooled Be+ ions simultaneously stored in the same trap.
Details
- External Organisation(s)
-
University Hospital Düsseldorf
- Type
- Conference contribution
- No. of pages
- 6
- Publication date
- 21.11.2017
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Computer Science Applications, Applied Mathematics, Electrical and Electronic Engineering
- Electronic version(s)
-
https://doi.org/10.1117/12.2308072 (Access:
Open
)
Cite
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