Erlangen 2018 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 4: Matter Wave Optics I
Q 4.2: Vortrag
Montag, 5. März 2018, 10:45–11:00, K 1.013
An optical dipole trap for dual-species atom interferometry with K and Rb in space — •Simon Kanthak1, Klaus Döringshoff1, Martina Gebbe2, Sven Abend3, Matthias Gersemann3, Markus Krutzik1, Achim Peters1, and The MAIUS Team1,2,3,4,5 — 1Institut für Physik, HU zu Berlin — 2ZARM, Universität Bremen — 3IQ, LU Hannover — 4Institut für Physik, JGU Mainz — 5Ferdinand-Braun-Institut, Berlin
An important challenge for dual-species atom interferometry experiments is the preperation of the quantum probes entering the interferometer which, amongst others, requires precise control of the relative center-of-mass positions. In the MAIUS 2/3 sounding rocket missions, a mixture of Rubidium and Potassium is initially trapped and cooled in an atom chip based trap and then transferred into an optical dipole trap (ODT), which allows for tuning of the collisional properties via Feshbach resonances and optical delta kick collimation for both species.
We present the ODT laser system at 1064 nm for the MAIUS 2/3 payload. It is based on a microintegrated extended cavity diode laser, master oscillator power amplifer (ECDL-MOPA) module. We report in detail on design and performance of our flight-qualified, all-fibered system including acusto-optical modulator and optical switch, as well as on results of loading a BEC from an atom chip based trap into the dipole trap and systematic studies of the transfer efficiency.
This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR50WP1432.