31 citations · 37 across the 2 of their papers we have counts for
5 papers
Two-step Doppler cooling of a three-level ladder system with an intermediate metastable level
Caroline Champenois, Gaetan Hagel, Martina Knoop +4
Doppler laser cooling of a three-level ladder system using two near-resonant laser fields is analyzed in the case of the intermediate level being metastable while the upper level i…
Doppler cooling of calcium ions using a dipole-forbidden transition
R. J. Hendricks, J. L. Sørensen, C. Champenois +2
Doppler cooling of calcium ions has been experimentally demonstrated using the S1/2 to D5/2 dipole-forbidden transition. Scattering forces and fluorescence levels a factor of 5 sma…
Dark resonances as a probe for the motional state of a single ion
C. Lisowski, M. Knoop, C. Champenois +3
Single, rf-trapped ions find various applications ranging from metrology to quantum computation. High-resolution interrogation of an extremely weak transition under best observatio…
Evaluation of the ultimate performances of a Ca+ single-ion frequency standard
Caroline Champenois, Marie Houssin, Caroline Lisowski +4
We numerically evaluate the expected performances of an optical frequency standard at 729 nm based on a single calcium ion. The frequency stability is studied through the Allan dev…
Metastable level lifetimes from electron-shelving measurements with ion clouds and single ions
Martina Knoop, Caroline Champenois, Gaëtan Hagel +4
The lifetime of the 3d^2D_5/2-level in singly-ionized calcium has been measured by the electron-shelving technique on different samples of rf trapped ions. The metastable state has…