<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium"^^ . "This thesis explores the photoionization dynamics in atoms using phase-locked two-color\r\npulses, a high-frequency extreme ultraviolet (XUV) and a low-frequency infrared (IR)\r\npulse, with the focus on extending the understanding of the interaction between the IR field\r\nand the outgoing electrons. To achieve this, a multi-sideband RABBITT (reconstruction of\r\nattosecond beating by two-photon transitions) technique was developed.\r\nAn attosecond-beamline is constructed which includes a femtosecond IR laser, a highorder harmonic generation module for producing XUV pulses, an interferometer, and a\r\nreaction microscope. The setup enables angle-differential and coincidence measurements\r\nof photoionization and photodissociation processes with attosecond precision in a pumpprobe configuration.\r\nThe XUV pulse initiates the photoionization process, and the resulting photoelectron\r\ninteracts with the IR field, exchanging several photons as it escapes the ionic potential.\r\nDepending on the combination of XUV and IR photon exchanges, and/or the angularmomentum channels involved, the photoelectrons can reach the same state via different\r\nquantum paths. The resulting signal in the photoelectron spectrum is the coherent superposition of all these distinct quantum paths, which oscillates as the temporal delay between\r\nthe XUV and IR pulses varies, creating an interferogram.\r\nThe recorded angle-differential photoelectron interferograms in helium and argon enable the extraction of information on the relative amplitudes and phases of the dipole transition matrix elements associated with the many-order continuum-continuum transitions.\r\nWe compare the experimental results with ab initio theoretical calculations based on\r\nsolving the time-dependent Schrodinger equation and use a few-level-model simulation to ¨\r\nunderstand the impact of different parameters on the photoelectron interferogram and the\r\nextracted information."^^ . "2023" . . . . . . . "Divya"^^ . "Bharti"^^ . "Divya Bharti"^^ . . . . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (PDF)"^^ . . . "Thesis_DB_HD.pdf"^^ . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Multi-Sideband Photoelectron Interferometry in Argon and Helium (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #33729 \n\nMulti-Sideband Photoelectron Interferometry in Argon and Helium\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .