4 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 th…
Comb-referenced Doppler-free spectrometry of the Hg and Hg intercombination line at 254 nm
Stefania Gravina, Naveed A. Chishti, Simona Di Bernardo +4
We report on precision spectroscopy of the 6s S6s6p P intercombination line of mercury in the deep ultraviolet, by means of a frequency-comb referenced, wave…