Bonn 2025 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 10: Quantum Optics and Nuclear Quantum Optics I

Q 10.4: Vortrag

Montag, 10. März 2025, 18:00–18:15, AP-HS

ORKA- Cavity enhanced dipole trapping of Rb87 atoms for microgravity — •Marius Prinz, Jan Eric Stiehler, Marian Woltmann, and Sven Herrmann — Center of Applied Space Technology and Microgravity (ZARM), University of Bremen, Germany

Using a dipole trap as a source for ultra-cold quantum gases comes at the cost of a high power budget of the trapping lasers. This limits the usability of all-optical trapping/cooling in power limited environments, e.g. space. To overcome this limit, the ORKA project aims to exploit the high intracavity power and crossed beam geometry of a high finesse optical bow-tie cavity. Our goal is to employ such a setup in the Bremen GraviTower to prepare Rb87 BECs as a matter wave source in microgravity. In this talk we will present the design and statud of our drop tower setup as well as first measurements of the basic properties of the cavity. The ORKA project is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Climate Action under grant number DLR 50 WM 2267.

Keywords: dipole trap; cavity; all optical; BEC; microgravity