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A: Fachverband Atomphysik

A 27: Poster III

A 27.28: Poster

Donnerstag, 9. März 2023, 16:30–19:00, Empore Lichthof

Towards a continuous atom laser — •Junyu He¹, Noé Grenier², Rodrigo González Escudero¹, Chun-Chia Chen¹, Jiri Minář^3,4, Shayne Bennetts¹, Benjamin Pasquiou⁵, and Florian Schreck^1,4 — ¹Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, The Netherlands — ²École normale supérieure Paris-Saclay, France — ³Institute for Theoretical Physics, University of Amsterdam, The Netherlands — ⁴QuSoft, The Netherlands — ⁵Laboratoire de Physique des Lasers, Université Sorbonne Paris Nord, France

A continuous atom laser would be a promising source for quantum sensing, providing a high-flux, low-divergence beam while avoiding measurement dead time [1]. We plan to outcouple such a beam from a Bose-Einstein condensate that we can continuously sustain [2]. Our approach sends a Sr beam from an oven through a sequence of spatially separated laser cooling stages till the atoms accumulate in a protected area where they condense. Our next steps will be to enhance the purity of the BEC and to outcouple a continuous atom laser beam using a three-photon transfer to an untrapped state [3].

[1] Phys. Rep. 529, 265 (2013). [2] Nature 606, 683 (2022). [3] Phys. Rev. A 93, 053417 (2016).