Characterizing frequency drift of a high-finesse cavity
Task: Characterize the frequency drift of our optical high-finesse cavity via a longterm measurement of its resonance frequencie(s) with an optical frequency comb. Despite temperature stabilization and mechanical stability, the cavity fringes at least have a linear drift at the order of 100 mHz/s due to material aging of the glass spacer.
Field of study: optical frequency comb, optical frequency metrology, ultra-stable optical cavities
Contact: Hendrik Schürg (h.schuerg[a]uni-mainz.de)
Radiation and population escape factors in a cylindrical discharge tube
Task: Apply the escape factor method to model reabsorption of photons in our hydrogen discharge. This process modifies the population distribution of excited states and the intensity of emission lines observed in optical emission spectroscopy.
Field of study: atom-light interaction, plasma physics
Contact: Hendrik Schürg (h.schuerg[a]uni-mainz.de)
Polarisation switching unit Lithium Spectroscopy
Task: For the spectroscopy of a cold Lithium beam emitted by a 2D MOT, we need to be able to quickly switch the Polarisation of our spectroscopy beam.
Field of study: lasers, optics, electronics, acousto-optics
Contact: Gregor Schwendler (grschwen[a]uni-mainz.de) and Hannah Jost (hjost@uni-mainz.de)
Setup of a beat-offset-lock scheme to stabilize a laser to a reference
Task: Build an external cavity diode laser (ECDL) and stabilize it to another laser by using a beat-offset-locking scheme.
Field of study: lasers, optics, electronics
Contact: Gregor Schwendler (grschwen[a]uni-mainz.de) and Hannah Jost (hjost@uni-mainz.de)
Hydrogen microwave discharge
If you have an own idea for a project in mind that you would like to do in our group, please feel free to contact us!
