The first laboratory was set up in 1996 thanks to a grant of the University of Campania “Luigi Vanvitelli”, formerly Second University of Naples. Initially, it was entirely focused on laser applications to environmental research, providing important contributions to the development of stable isotope ratio infrared spectrometry, as well as trace-gas monitoring by means of diode laser spectroscopy. The work performed under the guidance of Prof. Livio Gianfrani was very much appreciated worldwide. Over the years, the laboratory has progressively grown, greatly expanding the areas of study and research.
Current research activities include: precision measurements in molecular systems; fundamental metrology; development of Doppler broadening gas thermometry; collisional effects and spectral line shape studies; highly accurate determination of spectroscopic parameters of greenhouse gases; trace-gas measurements by means of frequency stabilized cavity ring-down spectroscopy; ultra-sensitive cavity-enhanced spectroscopy.
Molecules of interest are: H2O, CO2, N2O, HD, C2H2
In the last decade, the Group has addressed important issues in the field of fundamental physics. In this respect, the work on the spectroscopic determination of the Boltzmann constant is particularly well known.
Recently, the team has contributed to the success of the European network InK, Implementing the new Kelvin. In this framework, Doppler broadening thermometry (DBT) has made a significant step forward for the aims of low uncertainty thermodynamic temperature determinations.
Optical-Feedback Laser Absorption Spectroscopy
Acetylene spectra and DBT determinations
