149 citations · 229 across the 8 of their papers we have counts for
8 papers
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
Methanol radio lines observed in space provide sensitive probes of whether the proton-to-electron mass ratio has changed over cosmic time, but such tests require laboratory rest fr…
Precise frequencies of HO lines protected for radio astronomy
Arthémise Altman, Roland Tóbiás, Alexandr S. Bogomolov +5
Precise frequency values have been determined for HO radio lines appearing in protected line lists of the International Astronomical Union and the Panel on Frequency Allo…
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…
Lamb dip of a Quadrupole Transition in H
F. M. J. Cozijn, M. L. Diouf, W. Ubachs
The saturated absorption spectrum of the hyperfine-less S(0) quadrupole line in the (2-0) band of H is measured at nm, using the NICE-OHMS technique under cryogenic co…
Rotational level spacings in HD from vibrational saturation spectroscopy
F. M. J. Cozijn, M. L. Diouf, V. Hermann +3
The R(1), R(3) and P(3) ro-vibrational transitions in the (2-0) overtone band of the HD molecule are measured in Doppler-free saturation using the technique of NICE-OHMS spectrosco…
Proton-Electron Mass Ratio from Laser Spectroscopy of HD at the Part-Per-Trillion Level
Sayan Patra, M. Germann, J. -Ph. Karr +7
Accepted values of the masses of several subatomic particles have been under debate since recent measurements in Penning traps produced more precise yet incompatible results, imply…
Lamb-peak spectrum of the HD (2-0) P(1) line
M. L. Diouf, F. M. J. Cozijn, K. -F. Lai +2
A saturation spectroscopy measurement of the P(1) line of the () band in HD is performed in a sensitive cavity-enhanced optical setup involving frequency comb calibration. The…
Lamb-dips and Lamb-peaks in the saturation spectrum of HD
M. L. Diouf, F. M. J. Cozijn, B. Darquié +2
The saturation spectrum of the R(1) transition in the (2-0) band in HD is found to exhibit a composite line shape, involving a Lamb-dip and a Lamb-peak. We propose an explanation f…