167 citations · 287 across the 6 of their papers we have counts for
6 papers
Comb-locked cavity ring-down spectroscopy of CO2 at 2-micron wavelength
Muhammad Asad Khan, Vittorio D'Agostino, Stefania Gravina +2
We report on a comb-locked cavity ring-down spectrometer developed for high-precision, SI-traceable, molecular spectroscopy of air-broadened CO2 gas samples. The experimental setup…
Isotope shift spectroscopy in mercury vapors: a valid alternative to ytterbium for new physics search
Stefania Gravina, Antonio Castrillo, Livio Gianfrani
Precision isotope shift metrology in the deep-UV region has been performed for all bosonic isotopes of mercury with a zero nuclear spin, by using the technique of frequency-comb re…
Cavity ringdown spectroscopy at 2 m wavelength assisted by a comb-locked optical parametric oscillator
Vittorio D'Agostino, Eugenio Fasci, Muhammad Asad Khan +3
We report on a comb-locked cavity ring-down spectrometer developed for high-precision molecular spectroscopy at 2 m. It is based on the use of an external-cavity diode laser tha…
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…
Observing the intrinsic linewidth of a quantum-cascade laser: beyond the Schawlow-Townes limit
S. Bartalini, S. Borri, P. Cancio +6
A comprehensive investigation of the frequency-noise spectral density of a free-running mid-infrared quantum-cascade laser is presented for the first time. It provides direct evide…
Primary gas thermometry by means of laser-absorption spectroscopy: Determination of the Boltzmann constant
G. Casa, A. Castrillo, G. Galzerano +5
We report on a new optical implementation of primary gas thermometry based on laser absorption spectrometry in the near infrared. The method consists in retrieving the Doppler broa…