fundamental constant tests 1methanol spectroscopy 1optical frequency comb 1precision frequency measurement 1radio-astronomy 1
From the 1 of 4 linked papers with an AI index.
Showing physics.atom-phShow all
2 papers · 1 filter
physics.atom-ph2026
Optically Derived Radio-Frequency Benchmark in Methanol: A Sub-kHz Reference for Astrophysical Tests of Fundamental Physics
Frank M. J. Cozijn, Arthémise Altman, Alexandr S. Bogomolov +8
The authors determine the absolute frequency of a key 12.2 GHz methanol transition by measuring related near‑infrared rovibrational lines with an optical frequency comb, achieving…
physics.atom-ph2025
Letokhov-Chebotayev intracavity trapping spectroscopy of H
Wim Ubachs, Frank M. J. Cozijn, Meissa L. Diouf +3
In the early days of laser spectroscopy Letokhov and Chebotayev proposed a scheme for measuring narrow spectral lines where the resolution is not restricted to Doppler effects beca…