<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich"^^ . "X-ray free-electron lasers have revolutionized x-ray science by achieving unprecedented intensities exceeding 10^18 W/cm^2. However, they lack temporal coherence and controllability of their pulses' temporal and spatial properties, which is essential for many applications. We investigate the possibility to control and shape x-ray laser pulses with optical light. An optical laser pulse is used to control the population inversion on the 2p-1s transition in a neon x-ray laser pumped by an x-ray free-electron laser. Theoretical results are presented based on population and photon rate equations. We study the dependance of the x-ray laser's output on the pump pulse's and the optical laser pulse's properties. Small-signal gain calculations reveal that for a high degree of control narrowband pumping radiation is required and the optical laser pulse must have precise timing with respect to the pump pulse. Self-consistent gain calculations show that it will be possible to do spatial pulse shaping and to produce high-intensity, sub-femtosecond pulses that are controlled by and synchronized to the optical laser pulse with femtosecond precision. Our results indicate that the presented scheme would make it possible to establish pump-probe techniques with femtosecond x-ray and optical pulses."^^ . "2011" . . . . . . . . "Gabor"^^ . "Darvasi"^^ . "Gabor Darvasi"^^ . . . . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (PDF)"^^ . . . "diplom.pdf"^^ . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Optische Kontrolle der Lasertätigkeit im Röntgenbereich (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #13204 \n\nOptische Kontrolle der Lasertätigkeit im Röntgenbereich\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .