6 papers · 1 filter
Density effects in precision laser spectroscopy of exotic helium atoms
Hubert J. Jóźwiak, Dimitar Bakalov, MichaŠPrzybytek +2
Exotic helium atoms act as unique atomic traps for heavy, negatively charged particles, protecting them from nuclear annihilation and nuclear capture on timescales long enough to e…
Letokhov-Chebotayev intracavity trapping spectroscopy of H
Wim Ubachs, Frank M. J. Cozijn, Meissa L. Diouf +3
In the early days of laser spectroscopy Letokhov and Chebotayev proposed a scheme for measuring narrow spectral lines where the resolution is not restricted to Doppler effects beca…
Quantum calculation of the collision-induced line-shape effects in antiprotonic helium and the new accurate ab initio He-He potential energy surface
Hubert J. Jóźwiak, Dimitar Bakalov, MichaŠPrzybytek +2
We present the first fully ab initio calculations of collision-induced broadening and shift of spectral lines in antiprotonic helium (He) perturbed by atomic helium.…
New beyond-Voigt line-shape profile recommended for the HITRAN database
P. WcisÅo, N. Stolarczyk, M. SÅowiÅski +20
Parameters associated with the collisional perturbation of spectral lines are essential for modeling the absorption of electromagnetic radiation in gas media. The HITRAN molecular…
Cavity-enhanced spectroscopy in the deep cryogenic regime -- new hydrogen technologies for quantum sensing
Kamil Stankiewicz, Marcin Makowski, MichaÅ SÅowiÅski +13
Spectrometers based on high-finesse optical cavities have proven to be powerful tools for applied and fundamental studies. Extending this technology to the deep cryogenic regime is…
Intensities of all fine-structure resolved rovibrational electric quadrupole absorption lines in O() calculated with a new quadrupole moment curve
Maciej Gancewski, Hubert Jóźwiak, Hubert Cybulski +1
The intensities of all rovibrational electric quadrupole absorption lines in O(), for which the vibrational quantum number is and the total…