Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 22: Posters: Quantum Optics and Photonics II
Q 22.27: Poster
Tuesday, March 10, 2020, 16:30–18:30, Empore Lichthof
Towards virtual-state superradiant lasing from cold ytterbium atoms — •Dmitriy Sholokhov, Hannes Gothe, Anna Breunig, and Jürgen Eschner — Universität des Saarlandes, Campus E2 6, 66123 Saarbrücken, Germany
We analyze atom-cavity interaction and lasing from cold Ytterbium-174 atoms that are magneto-optically trapped inside a high-finesse cavity. Lasing from a 399-nm (1S0−1P1) MOT was previously characterized for its power, frequency and polarization properties [1]. Here, we study a possibility of implementing a similar lasing process in a superradiant, or "bad-cavity", regime by employing narrower atomic transitions. We transport the atoms from blue (1S0−1P1) to green (1S0−3P1) MOT and characterize the associated dynamics of trapped atoms and spectral properties of the light emitted by the cavity under various conditions.
[1] H. Gothe, D. Sholokhov, A. Breunig, M. Steinel, J. Eschner, Phys. Rev. A 99, 013415 (2019)