141 citations · 328 across the 9 of their papers we have counts for
9 papers
Miniaturized vacuum package for magneto-optical trapping of strontium
Julian Pick, Eric Henker, Florian Löwinger +17
Quantum sensors, like optical lattice clocks, undergo a continuous development from lab-based towards mobile systems. A key aspect in the miniaturization of the experimental setups…
Achromatic, planar Fresnel-Reflector for a Single-beam Magneto-optical Trap
Saskia Bondza, Tobias Leopold, Roman Schwarz +1
We present a novel achromatic, planar, periodic mirror structure for single-beam magneto-optical trapping and demonstrate its use in first- and second-stage cooling and trapping fo…
Optical frequency ratio of a single-ion clock and a lattice clock
Sören Dörscher, Nils Huntemann, Roman Schwarz +6
We report direct measurements of the frequency ratio of the 642 THz -- electric octupole transition in and the 429 THz…
Long term measurement of the Sr clock frequency at the limit of primary Cs clocks
R. Schwarz, S. Dörscher, A. Al-Masoudi +7
We report on a series of 42 measurements of the transition frequency of the 429~THz (5s)~S--(5s5p)~P line in Sr taken over three years from 2017 to 2019.…
Dynamic decoupling of laser phase noise in compound atomic clocks
Sören Dörscher, Ali Al-Masoudi, Marcin Bober +4
The frequency stability achieved by an optical atomic clock ultimately depends on the coherence of its local oscillator. Even the best ultrastable lasers only allow interrogation t…
Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks
B. M. Roberts, P. Delva, A. Al-Masoudi +51
We search for transient variations of the fine structure constant using data from a European network of fiber-linked optical atomic clocks. By searching for coherent variations in…
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…
A high-performance optical lattice clock based on bosonic atoms
Stefano Origlia, Mysore Srinivas Pramod, Stephan Schiller +9
Optical lattice clocks with uncertainty and instability in the -range and below have so far been demonstrated exclusively using fermions. Here, we demonstrate a bosonic o…
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…