159 citations · 1.2k across the 20 of their papers we have counts for
20 papers
Accurate determination of the Boltzmann constant by Doppler spectroscopy: Towards a new definition of the kelvin
Benoît Darquié, Sinda Mejri, Papa Lat Tabara Sow +6
Accurate molecular spectroscopy in the mid-infrared region allows precision measurements of fundamental constants. For instance, measuring the linewidth of an isolated Doppler-broa…
Measuring the Boltzmann constant by mid-infrared laser spectroscopy of ammonia
S. Mejri, Papa Sow, O. Kozlova +7
We report on our ongoing effort to measure the Boltzmann constant, using the Doppler broadening technique on ammonia. This paper presents some of the improvements made to th…
Quantum cascade laser frequency stabilisation at the sub-Hz level
Bérengère Argence, Bruno Chanteau, Olivier Lopez +7
Quantum Cascade Lasers (QCL) are increasingly being used to probe the mid-infrared "molecular fingerprint" region. This prompted efforts towards improving their spectral performanc…
Absorption line shape recovery beyond the detection bandwidth limit: application to the precision spectroscopic measurement of the Boltzmann constant
François Rohart, Sinda Mejri, Papa Lat Tabara Sow +8
A theoretical model of the influence of detection bandwidth properties on observed line shapes in laser absorption spectroscopy is described. The model predicts artificial frequenc…
A widely tunable 10-m quantum cascade laser phase-locked to a state-of-the-art mid-infrared reference for precision molecular spectroscopy
Papa Lat Tabara Sow, Sinda Mejri, Sean K. Tokunaga +7
We report the coherent phase-locking of a quantum cascade laser (QCL) at 10-m to the secondary frequency standard of this spectral region, a CO2 laser stabilized on a saturated…
Probing weak force induced parity violation by high resolution mid-infrared molecular spectroscopy
Sean K. Tokunaga, Clara Stoeffler, Frédéric Auguste +5
To date no experiment has reached the level of sensitivity required to observe weak nuclear force induced parity violation (PV) energy differences in chiral molecules. In this pape…