Project Details
Projekt Print View

Vibrationally-resolved core-excitation spectroscopy of (near-)symmetric diatomic molecular ions

Applicant Professor Dr. Stefan Schippers, since 7/2024
Subject Area Optics, Quantum Optics and Physics of Atoms, Molecules and Plasmas
Term since 2024
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 536103037
 
The proposed project aims at performing vibrationally resolved core-excitation spectroscopy of symmetric and near-symmetric molecular ions, specifically C2+, CN+, N2+, CO+, NO+, and O2+. We will experimentally determine the spectroscopic constants of core-excited levels, defined as electronic states with a K-shell vacancy. Our results will serve as valuable benchmark data to guide the development of accurate theoretical descriptions of core-excited diatomic molecules. While core-excitation spectroscopy of neutral molecules is routinely performed at synchrotron radiation facilities, experiments with molecular ions require to overcome additional technical challenges. To this end we will establish a new experimental approach which combines our existing merged-beams apparatus – installed at the synchrotron radiation facility PETRA III – with a new position sensitive detector for molecular fragments. By combing measurement on diatomic molecular ions, diatomic neutral molecules, and few-electron atomic ions, we aim to reduce calibration errors substantially and thus achieve an unsurpassed level of accuracy for the investigated spectroscopic constants.
DFG Programme Research Grants
Ehemaliger Antragsteller Dr. Pierre-Michel Hillenbrand, until 6/2024
 
 

Additional Information

Textvergrößerung und Kontrastanpassung