12 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…
Isotope shifts and hyperfine splitting of the transition in zinc
Felix Waldherr, Lukas Möller, Lukas Möller +1
We report laser-induced-fluorescence spectroscopy of the intercombination transition in neutral zinc at . Isotope shifts are measur…
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…
Magneto-optical trapping of Zinc
Lukas Möller, Simon Stellmer
We report on laser cooling and magneto-optical trapping of atomic zinc. The atoms are cooled using the 213.9\,nm S P transition, making this the short…
Probing Nuclear Interactions Through Isotope Shift Spectroscopy of Mercury
Thorsten Groh, Felix Affeld, Simon Stellmer
We present precision isotope shift spectroscopy of the intercombination line and the…