We review progress, since publication of the book``Collisional effects on molecular spectra:
Laboratory experiments and models, consequences for applications"(Elsevier, Amsterdam …

Abstract In 2011, the General Conference on Weights and Measures (CGPM) confirmed its
intention to adopt new definitions for four of the base units of the SI based on fixed numerical …

The report of an IUPAC Task Group, formed in 2011 on “Intensities and line shapes in high-
resolution spectra of water isotopologues from experiment and theory”(Project No. 2011-022 …

High-precision measurements with molecules may refine our knowledge of various fields of
physics, from atmospheric and interstellar physics to the standard model or physics beyond …

Laser power fluctuations can significantly reduce the device performances in various
applications. High frequency fluctuations impact the signal-to-noise ratio, while slow …

Abstract The International Committee for Weights and Measures (CIPM), at its meeting in
October 2017, followed the recommendation of the Consultative Committee for Units (CCU) …

Experimental capabilities of molecular spectroscopy and its applications nowadays require
a sub-percent or even sub-per mille accuracy of the representation of the shapes of …

Spectroscopy has an illustrious history delivering serendipitous discoveries and providing a
stringent testbed for new physical predictions, including applications from trace materials …

Laser spectroscopy in the linear regime of radiation–matter interaction is a powerful tool for
measuring thermodynamic quantities in a gas at thermodynamic equilibrium. In particular …

Narrow‐linewidth lasers are key elements in optical metrology and spectroscopy. Spectral
purity of these lasers determines accuracy of the measurements and quality of collected …