Advanced search

Filter By:

Journal Check one or more journals to show results from those journals only.

Choose more journals

Article type Check one or more article types to show results from those article types only.
Subject Check one or more subjects to show results from those subjects only.
Date Choose a date option to show results from those dates only.

Custom date range

Clear all filters
Sort by:
Showing 1–6 of 6 results
Advanced filters: Author: Uwe Sterr Clear advanced filters

  • A new approach to lasers that promises optical emission with a spectral linewidth of just 1 mHz could lead to even more accurate and stable atomic clocks.

    • Uwe Sterr
    • Christian Lisdat
    News & Views
    Nature Physics
    Volume: 5, P: 382-383

  • Optical atomic clocks are useful tools for frequency metrology. Here the authors explore the stability of the atomic clocks and the role of the spin squeezed states for the noise reduction in these clocks.

    • Marius Schulte
    • Christian Lisdat
    • Klemens Hammerer
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-10

  • Meta-mirrors may help realize ultra-stable lasers for high-precision metrology, for applications like gravitational wave detection and quantum optics. The authors experimentally realize a new type of microstructured meta-mirror and use it to form a Fabry-Perot cavity with low thermal noise and a high finesse of 12,000.

    • Johannes Dickmann
    • Steffen Sauer
    • Stefanie Kroker
    ResearchOpen Access
    Communications Physics
    Volume: 6, P: 1-5

  • An atomic clock has been deployed on a field measurement campaign to determine the height of a mountain location 1,000 m above sea level, returning a value that is in good agreement with state-of-the-art geodesy.

    • Jacopo Grotti
    • Silvio Koller
    • Davide Calonico
    Research
    Nature Physics
    Volume: 14, P: 437-441

  • Optical clocks have many applications, from improved GNSS measurements to fundamental tests of general relativity, but their frequency stability is limited by quantum noise and the Dick effect. The authors present and demonstrate a method to estimate the phase of an optical clock laser beyond the laser coherence time that can be used to improve the stability of these devices for applications in metrology and the search for new physics.

    • Sören Dörscher
    • Ali Al-Masoudi
    • Christian Lisdat
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-9