Sebastian Häfner

activity

20132022

most cited1.5

μ

m lasers with sub 10 mHz linewidth

584 citations · 2.1k across the 9 of their papers we have counts for

collaborators

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physics.atom-ph2017★ 495 cited

Geodesy and metrology with a transportable optical clock

Jacopo Grotti, Silvio Koller, Stefan Vogt +21

The advent of novel measurement instrumentation can lead to paradigm shifts in scientific research. Optical atomic clocks, due to their unprecedented stability and uncertainty, are…

physics.atom-ph2015★ 87 cited

Noise and instability of an optical lattice clock

Ali Al-Masoudi, Sören Dörscher, Sebastian Häfner +2

We present an analysis of the different types of noise from the detection and interrogation laser in our strontium lattice clock. We develop a noise model showing that in our setup…

physics.atom-ph2013★ 171 cited

A strontium lattice clock with $3 \times 1 0^{- 17}$ inaccuracy and its frequency

Stephan Falke, Nathan Lemke, Christian Grebing +10

We have measured the absolute frequency of the optical lattice clock based on $^{87}$ Sr at PTB with an uncertainty of $3.9 \times 1 0^{- 16}$ using two caesium fountain clocks. This i…

Geodesy and metrology with a transportable optical clock

Noise and instability of an optical lattice clock

A strontium lattice clock with 3×10−17 inaccuracy and its frequency

A strontium lattice clock with $3 \times 1 0^{- 17}$ inaccuracy and its frequency