4 citations · 8 across the 5 of their papers we have counts for
5 papers
A 3D passive ring gyroscope for seismology
Thomas Gereons, Jannik Zenner, Thorsten Groh +1
In seismology and related fields, the measurement of rotation in all three spatial dimensions is essential to complement the observation of translations. Access to all six degrees…
Optical steering of a large ring laser
Jannik Zenner, Karl Ulrich Schreiber, Simon Stellmer
A common approach to reduce the linewidth of a laser is an increase of its resonator length. In large gas lasers, however, the frequency spacing between longitudinal modes of the r…
Hänsch-Couillaud locking of a large Sagnac interferometer: advancing below the flicker floor
Jannik Zenner, Karl Ulrich Schreiber, Simon Stellmer
Large Sagnac interferometers in the form of active ring lasers have emerged as unique rotation sensors in the geosciences, where their sensitivity allows to detect geodetic and sei…
Stabilizing the free spectral range of a large ring laser
Jannik Zenner, Karl Ulrich Schreiber, Simon Stellmer
A ring laser is defined by its perimeter, which directly enters the conversion factor between measured Sagnac frequency and the actual rotation rate. Large ring lasers employed in…
Probing the magnetic band gap of the ferromagnetic topological insulator MnSbTe
Philipp Küppers, Jannik Zenner, Stefan Wimmer +4
Mn-rich MnSbTe is a ferromagnetic topological insulator with yet the highest Curie temperature T_C = 45-50 K. It exhibits a magnetic gap at the Dirac point of the topologic…