Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 27: Poster – Precision Spectroscopy of Atoms and Ions (joint session A/Q)
Q 27.14: Poster
Dienstag, 3. März 2026, 17:00–19:00, Philo 1. OG
How to overengineer an alkali vapor cell characterization system? — •Ingo Hilschenz1,2, Marvin Keßler2,3, Folke Dencker3, Jens Voigt2, Peter Krüger2, and Ilja Gerhardt1 — 1light & matter group, Institute for Solid State Physics, Leibniz University Hannover, Appelstrasse 2, D-30167 Hannover, Germany — 2Physikalisch-Technische Bundesanstalt, Abbestraße 2-12, D-10587 Berlin, Germany — 3Institute of Micro Production Technology, Leibniz University Hannover, An der Universität 2, D-30823 Garbsen, Germany
Hot alkali vapor cells are very versatile in quantum sensing. Their applications cover laser locking, wavelength filters, time standards, and magnetic sensors. Therefore, micro-fabricated cells which deliver highly reproducible specifications are very sought after. As each application has its own requirements, a means of quality control is essential. For example, high vapor pressures might be ideal for a SERF magnetometer, but are less desirable for Doppler-free laser locking. We discuss the quality measures for atomic vapor cells for their specific use. A mostly automated system that combines absorption spectroscopy (Doppler and Doppler-free), longitudinal, and transversal relaxation time measurements are presented. The figures to checks the cell’s suitability for magnetometers are discussed in detail. Our system can automatically record spectra around the D1 and D2 lines of rubidium, scan the most relevant parameters, and adapts easily to varying cell shapes.
Keywords: alkali-vapor cell; OPM; spectroscopy; magnetometer