Seminarium Optyczne

Accurate measurements of the shapes of molecular resonances provide information about moleculardynamics and validate the potential energy surfaces for various collisional systems. This is due tothe fact that the collision-perturbed velocity distribution of the optical coherence manifests itself asthe perturbation of the shape of such resonance. We present a theoretical description of this process,using state-of-the-art potential energy surfaces and quantum scattering calculations for diatom-atomand diatom-diatom systems. Not only does this approach properly describe the internal andtranslational motions of the molecules, but also correlations between them. This results in thesubpercent agreement between the calculated and measured spectral line profiles. These theoreticaldevelopments are important for reducing systematic errors in optical metrology based on molecularspectroscopy (for instance, they allow for more accurate determination of rovibrational splitting inmolecular hydrogen and, hence, for accurate tests of quantum electrodynamics for molecules).Accurate theoretical models of the collision-perturbed molecular spectra will be used for populatingline-by-line spectroscopic databases and providing reference spectra for the studies of planetaryatmospheresInstrukcja obsługi połączenia

Seminarium z użyciem połączenia internetowegohttps://zoom.us/j/97696726563(meeting ID: ID 97696726563, password: 314297)