Recent advances in high-order harmonic generation have made it possible to use a tabletop-
scale setup to produce spatially and temporally coherent beams of light with bandwidth …

Photon-in-photon-out core level spectroscopy is an emerging approach to characterize the
electronic structure of catalysts and enzymes, and it is either installed or planned for intense …

In this study, we reconstructed the dynamics of the impact of mid-IR-range (4.6 μm)
femtosecond laser pulses on bulk silicon under tight focusing conditions (NA= 0.5). Our …

Optical amplifiers in all ranges of the electromagnetic spectrum exhibit an essential
characteristic, namely the input signal during the propagation in the amplifier medium is …

We report, for the first time, the generation of high-order harmonics in a spectral range
between 200 eV and 1 keV with an unusual spectral property: only every 4th (4i+ 1, i∈ ℵ) …

We investigated experimentally as well as theoretically the ultrafast response of the wave
function of the conduction band (CB) of Si and Zr to a near-infrared laser field using extreme …

Applying extreme ultraviolet (XUV) transient absorption spectroscopy, the dynamics of the
two laser dressed transitions 3d_5/2-to-5p_3/2 and 3p_3/2-to-5s_1/2 at photon energies of …

This thesis summarizes the experimental work in which an ultrafast X-ray laser plasma
source was combined with various scalable direct detection schemes to test a novel …

High-order harmonic generation is an important mechanism to generate coherent radiation
in the few–100-eV spectral range with ultrashort laser pulses. Moreover, a closer inspection …

The photo-control of macroscopic physical properties in the solid state is widely known as
photoinduced phase transition (PIPT). Ultrafast switching phenomena caused by PIPT have …