Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 33: Poster Session II
A 33.1: Poster
Mittwoch, 7. März 2018, 16:15–18:15, Redoutensaal
Laser spectroscopy of the 1001 nm transition in atomic dysprosium — •Lena Maske, Dominik Studer, Niels Petersen, Florian Mühlbauer, Klaus Wendt, and Patrick Windpassinger — QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudingerweg 7, 55128 Mainz, Germany
High precision spectroscopy of ultra-narrow transitions in cold quantum gases is a promising tool for tests of fundamental physics [1]. Furthermore, ultra-narrow transitions in atoms and molecules are extremely useful for applications in quantum simulation and quantum state manipulation. When considering magnetic quantum gases or very complex electronic systems, a good candidate for an ultra-narrow resonance is the 1001 nm 4f106s2 5I8 → 4f9(6H0)5d6s2 7I90 ground state transition in atomic dysprosium. Theoretical calculations predicted the exceptionally small linewidth of 53 Hz [2].
We present the first laser spectroscopy of the possibly ultra-narrow 1001 nm line in atomic dysprosium. Using resonance ionization spectroscopy with pulsed Ti:sapphire lasers at a hot cavity laser ion source, we were able to observe the transition and confirm the level energy listed in the NIST database. In addition, we show our progress towards precision spectroscopy of the 1001 nm transition with a continuous wave ECDL in cold dysprosium atoms to measure the linewidth and the isotope shift.
[1] V.A. Dzuba et al., Physical Review A81, 052515 (2010)
[2] C. Delaunay et al., Physical Review D96, 093001 (2017)