763 citations · 2.5k across the 24 of their papers we have counts for
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physics.atom-ph2004★ 78 cited
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★ 46 cited
Wavelength dependent ac-Stark shift of the 1S0 - 3P1 transition at 657 nm in Ca
Carsten Degenhardt, Hardo Stoehr, Uwe Sterr +2
We have measured the ac-Stark shift of the 4s2 1S0 - 4s4p 3P1 line in 40Ca for perturbing laser wavelengths between 780 nm and 1064 nm with a time domain Ramsey-Borde atom interfer…