Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.2: Poster
Wednesday, March 11, 2020, 16:30–18:30, Empore Lichthof
Investigation of zinc as a candidate for optical clocks — •David Röser, Maya Büki, and Simon Stellmer — Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn
The development of modern optical clocks has lead to frequency references with a precision level down to about 10−18 . Much effort in current development is put into downsizing existing clocks to make them transportable while keeping their precision.
We investigate zinc atoms as a novel platform. Zinc provides metastable states and thus a suitable level structure with a narrow 1S0 to 3P1 intercombination line and a doubly forbidden clock transition in the UV range.
Its low sensitivity to blackbody radiation shifts and the potential for miniaturization could allow for clock operation outside of laboratory environments. A clock laser is currently developed by frequency quintupling a diode laser at telecom c-band wavelength enabling the direct distribution of the clock signal via optical fibers.
We report on different concepts of constructing a clock based on zinc spectroscopy and the status of our experiment.