160 citations · 508 across the 18 of their papers we have counts for
18 papers
New beyond-Voigt line-shape profile recommended for the HITRAN database
P. Wcisło, N. Stolarczyk, M. Słowiński +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…
Leveraging resonant frequencies of an optical cavity for spectroscopic measurement of gas temperature and concentration
Daniel Lisak, Vittorio D'Agostino, Szymon Wójtewicz +5
We introduce a spectroscopic approach to primary gas thermometry, harnessing precise optical cavity resonance frequencies and ab initio molecular line intensity calculations. By ut…
Accurate reference spectra of HD in H/He bath for planetary applications
H. Jóźwiak, N. Stolarczyk, K. Stankiewicz +9
The hydrogen deuteride (HD) molecule is an important deuterium tracer in astrophysical studies. The atmospheres of gas giants are dominated by molecular hydrogen, and simultaneous…
Heterodyne dispersive cavity ring-down spectroscopy exploiting eigenmode frequencies for high-fidelity measurements
Agata Cygan, Szymon Wójtewicz, Hubert Jóźwiak +6
Measuring low light absorption with combined uncertainty < 1 permille is crucial in a wide range of applications. Popular cavity ring-down spectroscopy can provide ultra-high preci…
Hyperfine and Zeeman interactions in ultracold collisions of molecular hydrogen with atomic lithium
Hubert Jóźwiak, Timur V. Tscherbul, Piotr Wcisło
We present a rigorous quantum scattering study of the effects of hyperfine and Zeeman interactions on cold Li - H collisions in the presence of an external magnetic field usi…
Rovibrational (de-)excitation of H by He revisited
Hubert Jóźwiak, Franck Thibault, Alexandra Viel +2
Collisional (de-)excitation of H by helium plays an important role in the thermal balance and chemistry of various astrophysical environments, making accurate rate coefficien…
Engineering the sensitivity of macroscopic physical systems to variations in the fine-structure constant
Beata Zjawin, Marcin Bober, Roman Ciuryło +3
Experiments aimed at searching for variations in the fine-structure constant are based on spectroscopy of transitions in microscopic bound systems, such as atoms and ions, or r…
Spectral line shape in the limit of frequent velocity-changing collisions
Nikodem Stolarczyk, Piotr Wcisło, Roman Ciurłyo
The speed-dependent spectral line profiles collapse into a simple Lorentz profile in the regime dominated by the velocity-changing collisions. We derive general formulas for the ef…
Stimulated-Raman-Scattering Metrology
M. Lamperti, L. Rutkowski, D. Ronchetti +10
Frequency combs have revolutionized optical frequency metrology, allowing one to determine highly accurate transition frequencies of a wealth of molecular species. Despite a recogn…
Hyperfine components of all rovibrational quadrupole transitions in the H and D molecules
Hubert Jóźwiak, Hubert Cybulski, Piotr Wcisło
We report results of a theoretical investigation of hyperfine interactions in two homonuclear isotopologues of the hydrogen molecule: H and D. We present a set of hyper…
Beyond the Limits of Conventional Stark Deceleration
David Reens, Hao Wu, Alexander Aeppli +4
Stark deceleration enables the production of cold and dense molecular beams with applications in trapping, collisional studies, and precision measurement. Improving the efficiency…
Ultra-high finesse cavity-enhanced spectroscopy for accurate tests of quantum electrodynamics for molecules
M. Zaborowski, M. Słowiński, K. Stankiewicz +11
We report the most accurate measurement of the position of the weak quadrupole S(2) 2-0 line in D. The spectra were collected with a frequency-stabilized cavity ring-down spect…
Nonlinear magneto-optical rotation with parametric resonance
Piotr Put, Piotr Wcisło, Wojciech Gawlik +1
We report on investigations of nonlinear magneto-optical rotation (NMOR) in rubidium vapor subjected to a modulated magnetic field and continuous-wave (CW) laser-light illumination…
First observation with global network of optical atomic clocks aimed for a dark matter detection
P. Wcisło, P. Ablewski, K. Beloy +19
We report on the first earth-scale quantum sensor network based on optical atomic clocks aimed at dark matter (DM) detection. Exploiting differences in the susceptibilities to the…
Precision measurements and test of molecular theory in highly-excited vibrational states of H
T. Madhu Trivikram, M. L. Niu, P. Wcisło +2
Accurate transition energies in molecular hydrogen were determined for transitions originating from levels with highly-excited vibrational quantum number,…
Searching for topological defect dark matter with optical atomic clocks
Piotr Wcislo, Piotr Morzynski, Marcin Bober +4
The total mass density of the Universe appears to be dominated by dark matter. However, beyond its gravitational interactions at the galactic scale, little is known about its natur…
Strontium optical lattice clocks for practical realization of the metre and secondary representation of the second
M. Bober, P. Morzyński, A. Cygan +17
We present a system of two independent strontium optical lattice standards probed with a single shared ultra-narrow laser. The absolute frequency of the clocks can be verified by t…
Absolute Frequency Measurement of Rubidium 5S-7S Two-Photon Transitions
Piotr Morzynski, Piotr Wcislo, Piotr Ablewski +9
We report the absolute frequency measurements of rubidium 5S-7S two-photon transitions with a cw laser digitally locked to an atomic transition and referenced to an optical frequen…