Freiburg 2024 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 23: Poster I
Q 23.12: Poster
Dienstag, 12. März 2024, 17:00–19:00, Tent B
Spectral properties of a cold-atom laser — Dmitriy Sholokhov, Saran Shaju, •Ke Li, and Jürgen Eschner — Universität des Saarlandes
We investigate optical gain and lasing emission from an ensemble of a few thousand Ytterbium-174 atoms which are magneto-optically trapped, using the 1S0 - 1P1 transition at 399 nm, inside a 5-cm long high-finesse cavity. When the atoms are pumped on the 1S0 - 3P1 intercombination transition at 556 nm, continuous-wave lasing on the same transition is observed [1]. By heterodyne analysis, we measure the cavity output spectra for a range of trap and pump light powers and detuning. From the data, we extract the gain profile for the cold ytterbium laser and compare its properties with our theoretical model.
Keywords: Cold atoms; Lasing mechanism