Abstract
Laser spectroscopy of the 229mTh nuclear clock transition is necessary for the future construction of a nuclear-based optical clock. Precision laser sources with broad spectral coverage in the vacuum ultraviolet are needed for this task. Here, we present a tunable vacuum-ultraviolet frequency comb based on cavity-enhanced seventh-harmonic generation. Its tunable spectrum covers the current uncertainty range of the 229mTh nuclear clock transition.
Funder
Army Research Office
Air Force Office of Scientific Research
National Science Foundation
National Institute of Standards and Technology
Subject
Atomic and Molecular Physics, and Optics
Cited by
10 articles.
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