Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 14: Precision Measurements and Metrology (Optical Clocks)
Q 14.4: Vortrag
Montag, 11. März 2019, 15:00–15:15, S SR 111 Maschb.
Design of a compact optical frequency standard at 689 nm for space applications based on a cooled strontium beam — •Franz Balthasar Gutsch1, Oliver Fartmann1, Conrad Zimmermann1, Frederik Böhle2, Matthias Lezius2, Ronald Holzwarth2, Ahmad Bawamia3, Christoph Pyrlik3, Andreas Wicht3, and Markus Krutzik1,3 — 1Humboldt-Universität zu Berlin — 2MenloSystems GmbH — 3Ferdinand-Braun-Institut, Berlin
Apart from field- and lab-based applications in metrology and sensing, compact and rugged optical frequency references receive increased attention with respect to spaceborne operation. Optical clocks built around those references using frequency combs could address a variety of precision timing applications. For example, such a device and the underlying key technologies are candidates for next-generation GNSS core equipment. Build upon our heritage of several sounding rocket missions [1, 2, 3], we are currently setting up a system for investigating the 7.6 kHz-broad 1S0→ 3P1 intercombination line in 88Sr. Using an optical Ramsey technique, we intend to perform high-resolution spectroscopy on 2D-laser-cooled Sr atomic beams probed by a pre-stabilized 689 nm diode laser. In this talk, we will give an overview on the system architecture and discuss first results from our ground testbed using thermal Sr gases. 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 DLR50WM1851-53. [1] Lezius et al., Optica Vol. 3 (2016); [2] Dinkelaker et al., Appl. Opt. 56 (2017); [3] Schkolnik et al., EPJQT 4 (2017)