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arXiv · 1907.05754

Spectroscopy of the 1001 nm transition in atomic dysprosium

Niels Petersen·Marcel Trümper·Patrick Windpassinger
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Abstract

We report on spectroscopy of cold dysprosium atoms on the $1001\,\mathrm{nm}$ transition and present measurements of the excited state lifetime which is at least $87.2(6.7)\,\mathrm{ms}$ long. Due to the long excited state lifetime we are able to measure the ratio of the excited state polarizability to the ground state polarizability at $1064\,\mathrm{nm}$ to be $0.828(0.129)$ by parametric heating in an optical dipole trap. In addition we measure the isotope shifts of the three most abundant bosonic isotopes of dysprosium on the $1001\,\mathrm{nm}$ transition with an accuracy better than $30\,\mathrm{kHz}$.

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Niels Petersen, Marcel Trümper, Patrick Windpassinger. 2019-07-12. Spectroscopy of the 1001 nm transition in atomic dysprosium. https://doi.org/10.1103/physreva.101.042502

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