Cavity ring-down spectroscopy: recent technological advancements, techniques, and applications

A Maity, S Maithani, M Pradhan - Analytical chemistry, 2020 - ACS Publications
Cavity ring-down spectroscopy (CRDS), first pioneered in 1988 by O'Keefe and Deacon, 1
has evolved into a newgeneration, precision spectroscopy in recent years and subsequently …

Stimulated Raman scattering metrology of molecular hydrogen

M Lamperti, L Rutkowski, D Ronchetti, D Gatti… - Communications …, 2023 - nature.com
Frequency combs have revolutionized optical frequency metrology, allowing one to
determine highly accurate transition frequencies of a wealth of molecular species. These …

[HTML][HTML] Positions and intensities of hyperfine components of all rovibrational dipole lines in the HD molecule

H Jóźwiak, H Cybulski, P Wcisło - Journal of Quantitative Spectroscopy and …, 2020 - Elsevier
We report results of a theoretical analysis of hyperfine interactions in the HD molecule. We
present the calculated coupling constants: spin-rotation, spin-spin and electric quadrupole …

Hyperfine components of all rovibrational quadrupole transitions in the H2 and D2 molecules

H Jóźwiak, H Cybulski, P Wcisło - Journal of Quantitative Spectroscopy and …, 2020 - Elsevier
We report results of a theoretical investigation of hyperfine interactions in two homonuclear
isotopologues of the hydrogen molecule: H 2 and D 2. We present a set of hyperfine …

A theoretical study on vibrational energies of molecular hydrogen and its isotopes using a semi-classical approximation

RK Pingak, AZ Johannes, F Nitti… - Indonesian Journal of …, 2021 - journal.ugm.ac.id
This study aims to apply a semi-classical approach using some analytically solvable
potential functions to accurately compute the first ten pure vibrational energies of molecular …

[HTML][HTML] Hyperfine components of rovibrational dipole transitions in HT and DT

H Jóźwiak, H Cybulski, P Wcisło - Journal of Quantitative Spectroscopy and …, 2021 - Elsevier
We report a list of positions and intensities of 331 892 hyperfine components of all 18 585
rovibrational dipole transitions in the HT and DT isotopologues of molecular hydrogen. Apart …

Stimulated-Raman-Scattering Metrology

M Lamperti, L Rutkowski, D Ronchetti, D Gatti… - arXiv preprint arXiv …, 2022 - arxiv.org
Frequency combs have revolutionized optical frequency metrology, allowing one to
determine highly accurate transition frequencies of a wealth of molecular species. Despite a …

High-precision HD spectroscopy near 1.53 m

R Gotti, S Wójtewicz, M Marangoni, D Gatti… - Frontiers in …, 2024 - frontiersin.org
In this study, we report highly precise and accurate measurements of the P (5), P (6), and O
(3) transitions of the 2–0 band of HD occurring at approximately 1.5 μ m. HD spectra were …

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 …