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Q: Fachverband Quantenoptik und Photonik
Q 28: Precision Measurements and Metrology (Gravity)
Q 28.5: Vortrag
Mittwoch, 11. März 2020, 12:00–12:15, f435
Development of a micro-integrated, crossed-beam optical dipole trap setup for integrated atomic quantum sensors — •Marc Christ1,2, Anne Stiekel1,2, and Markus Krutzik1,2 — 1Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Berlin — 2Institut für Physik, Humboldt-Universität zu Berlin
Although generation, manipulation and detection of ultra-cold atomic matter has been demonstrated in prototypes operating in field and space environments, the transfer of these techniques into further miniaturized systems with less complexity remains an major technological challenge. One approach to reduce the size of a BEC-based sensor is to integrate optical systems within the vacuum system. This demands ultra-stable and ultra-high vacuum (UHV) compatible components and integration technologies with high mechanical and thermal resilience and alignment precision. To address UHV-compatibility, we set up a versatile qualification apparatus, enabling residual gas analysis and
measurements of total gas rates down to estimated 5· 10−10 mbar l/s. A prototype design of an UHV-compatible, crossed beam optical dipole trap setup for Rubidium operating at 1064 nm, its application within a atom-chip based quantum sensor and our technology qualification efforts are described. In addition, our current work on a micro-integrated demonstrator setup for first tests with cold atoms is presented.
This work is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy under grant number DLR 50WM1648, 50WM1949 and 50RK1978.