<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light"^^ . "This thesis investigates the interaction of ultrashort, extreme-ultraviolet (XUV) and\r\nsoft x-ray laser pulses with atoms and molecules in the gas phase. In total, the\r\nsubject is explored from four different perspectives, which are all based on the short-\r\nlived–coherent electronic responses to the laser pulses, and measured with transient\r\nabsorption spectroscopy. First, a theoretical study reveals how transient energy shifts\r\nof electronic dressed states in atoms driven by an intense XUV Free-Electron Laser\r\n(FEL) lead to temporal dipole phase shifts and absorption-line changes. Second,\r\na follow-up study investigates the electronic-population Rabi-cycles corresponding\r\nto the absorption-line changes of the first study. A convolutional neural network\r\nis employed to reconstruct the temporal population dynamics from the simulated\r\nspectral absorption modifications. The inversion from an absorption to an emission\r\nline is described and a potential experimental demonstration in helium is discussed.\r\nThird, dense gas targets enable amplification of the otherwise improbable, non-linear\r\nprocess of stimulated resonant inelastic x-ray scattering (RIXS), as well as x-ray FEL\r\npropagation-based spatial-spectral reshaping. To this end, a new experimental setup is\r\nbuilt and utilized in an x-ray FEL driven RIXS experiment in dense neon gas. Fourth,\r\na novel experiment combining XUV pulses from high-order harmonic generation\r\n(HHG) and XUV-FEL pulses is demonstrated by time-resolving a photochemical\r\nreaction in molecular oxygen. An FEL pulse initiates coupled nuclear-electronic\r\ndissociation pathways from molecular oxygen ions, which are time-resolved on femto-\r\nand picosecond time scales by identifying the reaction products in the time-delayed\r\nHHG absorption spectra. A FEL-photon-energy–resolved study of the fragments\r\nis performed to compare findings from absorption spectroscopy with kinetic energy\r\nrelease spectra recorded in parallel with a reaction microscope."^^ . "2024" . . . . . . . "Alexander"^^ . "Magunia"^^ . "Alexander Magunia"^^ . . . . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (PDF)"^^ . . . "PhDthesisAlexanderMagunia.pdf"^^ . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Time-and-Energy–Resolved Electron Dynamics in Atoms\r\nand Molecules with Intense Short-Wavelength Light (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #35166 \n\nTime-and-Energy–Resolved Electron Dynamics in Atoms \nand Molecules with Intense Short-Wavelength Light\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .