Direct frequency comb spectroscopy of trapped ions

Abstract

Direct frequency comb spectroscopy of trapped ions is demonstated for the first time. It is shown that the 4s^2S_(1/2)-4p^2P_(3/2) transition in calcium ions can be excited directly with a frequency comb laser that is upconverted to 393 nm. Detection of the transition is performed using a shelving scheme to suppress background signal from non-resonant comb modes. The measured transition frequency of f=761 905 012.7(0.5) MHz presents an improvement in accuracy of more than two orders of magnitude.

4 pages, 5 figure

References in corpus (7)

• Sr lattice clock at 1x10^{-16} fractional uncertainty by remote optical evaluation with a Ca clock
• New Limits to the Drift of Fundamental Constants from Laboratory Measurements
• Evaluation of the ultimate performances of a Ca+ single-ion frequency standard
• Frequency Metrology on single trapped ions in the weak binding limit: The 3s1/2-3p3/2 transition in 24-Mg+
• Precision measurement of the branching fractions of the 4P3/2 decay of Ca II
• Kilohertz-resolution spectroscopy of cold atoms with an optical frequency comb
• Frequency metrology on the 4s 2S1/2 - 4p 2P1/2 transition in the calcium ion for a comparison with quasar data

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• Laboratory atomic transition data for precise optical quasar absorption spectroscopy
• Spatial and Spectral Coherent Control with Frequency Combs
• XUV frequency comb metrology on the ground state of helium
• Direct frequency-comb-driven Raman transitions in the terahertz range
• Detection of Single Ion Spectra by Coulomb Crystal Heating
• Unexpectedly large difference of the electron density at the nucleus in the 4p ${}^2$P${}_{1/2,3/2}$ fine-structure doublet of Ca${}^{+}$
• Ultrafast-nonlinear ultraviolet pulse modulation in an AlInGaN polariton waveguide operating up to room temperature
• Parameter estimation in atomic spectroscopy using exceptional points
• A Novel, Robust Quantum Detection Scheme
• The TRAPSENSOR Facility: an Open-Ring 7-Tesla Penning Trap for Laser-Based Precision Experiments
• Parallel ion strings in linear multipole traps
• Direct spectroscopy of the ${}^2$S${}_{1/2}{-}^2$P${}_{1/2}$ and ${}^2$D${}_{3/2}{-}^2$P${}_{1/2}$ transitions and observation of micromotion modulated spectra in trapped \Ca
• Phase Stabilization of a Frequency Comb using Multipulse Quantum Interferometry