265 citations · 1.1k across the 13 of their papers we have counts for
13 papers
Guidelines for developing optical clocks with fractional frequency uncertainty
Moustafa Abdel-Hafiz, Piotr Ablewski, Ali Al-Masoudi +42
There has been tremendous progress in the performance of optical frequency standards since the first proposals to carry out precision spectroscopy on trapped, single ions in the 19…
Lattice-induced photon scattering in an optical lattice clock
Sören Dörscher, Roman Schwarz, Ali Al-Masoudi +3
We investigate scattering of lattice laser radiation in a strontium optical lattice clock and its implications for operating clocks at interrogation times up to several tens of sec…
8E-17 fractional laser frequency instability with a long room-temperature cavity
Sebastian Häfner, Stephan Falke, Christian Grebing +5
We present a laser system based on a 48 cm long optical glass resonator. The large size requires a sophisticated thermal control and optimized mounting design. A self balancing mou…
Ultra-stable laser with average fractional frequency drift rate below
Christian Hagemann, Christian Grebing, Christian Lisdat +6
Cryogenic single-crystal optical cavities have the potential to provide highest dimensional stability. We have investigated the long-term performance of an ultra-stable laser syste…
A strontium lattice clock with inaccuracy and its frequency
Stephan Falke, Nathan Lemke, Christian Grebing +10
We have measured the absolute frequency of the optical lattice clock based on Sr at PTB with an uncertainty of using two caesium fountain clocks. This i…
A compact and efficient strontium oven for laser-cooling experiments
Marco Schioppo, Nicola Poli, Marco Prevedelli +4
Here we describe a compact and efficient strontium oven well suited for laser-cooling experiments. Novel design solutions allowed us to produce a collimated strontium atomic beam w…