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Photon-photon interaction in structured QED vacuum
K. Z. Hatsagortsyan, G. Yu. Kryuchkyan
In spatially structured strong laser fields, quantum electrodynamical vacuum behaves like a nonlinear Kerr medium with modulated third-order susceptibility where new coherent nonli…
Under-the-barrier dynamics in laser-induced relativistic tunneling
Michael Klaiber, Enderalp Yakaboylu, Heiko Bauke +2
The tunneling dynamics in relativistic strong-field ionization is investigated with the aim to develop an intuitive picture for the relativistic tunneling regime. We demonstrate th…
Attosecond pulses at kiloelectronvolt photon energies from high-order harmonic generation with core electrons
Christian Buth, Feng He, Joachim Ullrich +2
High-order harmonic generation (HHG) in simultaneous intense near-infrared (NIR) laser light and brilliant x rays above an inner-shell absorption edge is examined. A tightly bound…
Streaking At High Energies With Electrons And Positrons
Andreas Ipp, Jörg Evers, Christoph H. Keitel +1
State-of-the-art attosecond metrology deals with the detection and characterization of photon pulses with typical energies up to the hundreds of eV and time resolution of several t…
Frontiers of atomic high-harmonic generation
Markus C. Kohler, Thomas Pfeifer, Karen Z. Hatsagortsyan +1
In the past two decades high-harmonic generation (HHG) has become a key process in ultra-fast science due to the extremely short time-structure of the underlying electron dynamics…