Lack of hyperfine shifts in Doppler-limited spectra of molecular hydrogen

H Jóźwiak, P Wcisło - Physical Review A, 2023 - APS
Accurate spectroscopy of molecular hydrogen isotopologues is used for testing quantum
electrodynamics and searching for physics beyond the standard model. Recent …

A stimulated Raman loss spectrometer for metrological studies of quadrupole lines of hydrogen isotopologues

M Lamperti, L Rutkowski, D Gatti, R Gotti… - Molecular …, 2023 - Taylor & Francis
We discuss layout and performance of a high-resolution Stimulated Raman Loss
spectrometer that has been newly developed for accurate studies of spectral lineshapes and …

A Comb-calibrated Raman Spectrometer for High-accuracy Measurements of Quadrupole Transitions in Gases

M Lamperti, L Rutkowski, D Gatti, R Gotti… - European Quantum …, 2023 - opg.optica.org
Coherent Raman scattering is a powerful technique to probe quadrupole transitions in
molecules. It has been deeply exploited in the last decades of the past century for high …

Comb-calibrated Raman Spectroscopy of Molecular Hydrogen

M Lamperti, L Rutkowski, D Ronchetti… - European Quantum …, 2023 - opg.optica.org
Molecular hydrogen and its isotopologues are key systems to test quantum electrodynamics
(QED) at molecular length scales, as their energy levels can be calculated with high …