3 papers
physics.atom-ph2004
The optical calcium frequency standards of PTB and NIST
U. Sterr, C. Degenhardt, H. Stoehr +7
We describe the current status of the Ca optical frequency standards with laser-cooled neutral atoms realized in two different laboratories for the purpose of developing a possible…
physics.atom-ph2004
Observation of Large Atomic-Recoil Induced Asymmetries in Cold Atom Spectroscopy
C. W. Oates, G. Wilpers, L. Hollberg
The atomic recoil effect leads to large (25 %) asymmetries in simple spectroscopic investigations of Ca atoms that have been laser-cooled to 10 microkelvin. Starting with spectra f…
physics.atom-ph2002
Photoassociation spectroscopy of cold calcium atoms
C. Degenhardt, T. Binnewies, G. Wilpers +4
Photoassociation spectroscopy experiments on 40Ca atoms close to the dissociation limit 4s4s 1S0 - 4s4p 1P1 are presented. The vibronic spectrum was measured for detunings of the p…