activity
20102025
most citedFirst observation with global network of optical atomic clocks aimed for a dark matter detection

160 citations · 370 across the 15 of their papers we have counts for

collaborators

15 papers

physics.optics2025★ 2 cited

Guidelines for designs for ultrastable laser with fractional frequency instability

Joannès Barbarat, Erik Benkler, Marcin Bober +46

Lasers with long coherence time and narrow linewidth are an essential tool for quantum sensors and clocks. Ultrastable cavities and laser systems are now commercially available wit…

physics.optics2024★ 2 cited

Mechanical loss and stability analysis of NEXCERA in ultra-stable optical cavities

Nico Wagner, Mateusz Narożnik, Marcin Bober +3

NEXCERA has emerged as a ceramic-based material for spacers in ultra-stable optical cavities, with a coefficient of thermal expansion that crosses zero near room temperature. In su…

physics.atom-ph2023

Engineering the sensitivity of macroscopic physical systems to variations in the fine-structure constant

Beata Zjawin, Marcin Bober, Roman Ciuryło +3

Experiments aimed at searching for variations in the fine-structure constant are based on spectroscopy of transitions in microscopic bound systems, such as atoms and ions, or r…

gr-qc2023★ 4 cited

Optical ultra-stable optical clock cavities as resonant mass gravitational wave detectors in search for new physics

M. Narożnik, M. Bober, M. Zawada

We propose to use table-top-size ultra-stable optical cavities from the state-of-the-art optical atomic clocks as bar gravitational wave detectors for the frequencies higher than 2…

physics.atom-ph2022★ 2 cited

Photoionization cross sections of ultracold Sr in P and S states at 390 nm and the resulting blue-detuned magic wavelength optical lattice clock constraints

Marcin Witkowski, Sławomir Bilicki, Marcin Bober +4

We present the measurements of the photoionisation cross sections of the excited P and S states of ultracold Sr atoms at 389.889 nm wavelength, which is the…

physics.atom-ph2022★ 9 cited

Ultimate stability of active optical frequency standards

Georgy A. Kazakov, Swadheen Dubey, Anna Bychek +3

Active optical frequency standards provide interesting alternatives to their passive counterparts. Particularly, such a clock alone continuously generates highly-stable narrow-line…