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physics.optics2026
Record nonlinear conversion efficiency in the production of high spectral purity vacuum ultraviolet laser at 148 nm
Sergey Vasilyev, Tian Ooi, Igor Moskalev +14
Coherent vacuum-ultraviolet (VUV) lasers are indispensable for precision measurement, quantum optics, and materials science. Recent high-resolution spectroscopy of the Th-229 nucle…
hep-ph2026
Probing Ultralight Dark Matter at the Mega-Planck Scale with the Thorium Nuclear Clock
Jason Arakawa, Jack F. Doyle, Elina Fuchs +10
Ultralight dark matter is expected to induce oscillations of nuclear parameters. These oscillations are characterized by extremely weak couplings or high suppression scales, with t…