Sebastian Häfner

activity

20162022

most citedA transportable optical lattice clock with

7 \times 1 0^{- 17}

uncertainty

235 citations · 281 across the 2 of their papers we have counts for

collaborators

4 papers

physics.optics2022★ 46 cited

A transportable clock laser system with an instability of $1.6 \times 1 0^{- 16}$

Sofia Herbers, Sebastian Häfner, Sören Dörscher +3

We present a transportable ultra-stable clock laser system based on a Fabry-Pérot cavity with crystalline Al $_{0.92}$ Ga $_{0.08}$ As/GaAs mirror coatings, fused silica (FS) mirror su…

physics.atom-ph2017

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.ins-det2017

1.5 $μ$ m lasers with sub 10 mHz linewidth

D. G. Matei, T. Legero, S. Häfner +8

We report on two ultrastable lasers each stabilized to independent silicon Fabry-Pérot cavities operated at 124 K. The fractional frequency instability of each laser is completely…

physics.optics2016★ 235 cited

A transportable optical lattice clock with $7 \times 1 0^{- 17}$ uncertainty

S. B. Koller, J. Grotti, St. Vogt +5

We present a transportable optical clock (TOC) with $^{87}$ Sr. Its complete characterization against a stationary lattice clock resulted in a systematic uncertainty of ${7.4 \times…

A transportable clock laser system with an instability of 1.6×10−16

Geodesy and metrology with a transportable optical clock

1.5 μm lasers with sub 10 mHz linewidth

A transportable optical lattice clock with 7×10−17 uncertainty

A transportable clock laser system with an instability of $1.6 \times 1 0^{- 16}$

1.5 $μ$ m lasers with sub 10 mHz linewidth

A transportable optical lattice clock with $7 \times 1 0^{- 17}$ uncertainty