64 citations · 188 across the 8 of their papers we have counts for
8 papers
Soft X-ray imaging with coherence tomography in the water window spectral range using high-harmonic generation
Julius Reinhard, Felix Wiesner, Themistoklis Sidiropoulos +15
High-harmonic generation (HHG) is used as a source for various imaging applications in the extreme ultraviolet spectral range. It offers spatially coherent radiation and unique ele…
Sub-wavelength localized all-optical helicity-independent magnetic switching using plasmonic gold nanostructures
Themistoklis Sidiropoulos, Puloma Singh, Tino Noll +8
All-optical helicity-independent switching (AO-HIS) is of interest for ultrafast and energy efficient magnetic switching in future magnetic data storage approaches. Yet, to achieve…
Ultrafast energy-dispersive soft-x-ray diffraction in the water window with a laser-driven source
Jasmin Jarecki, Martin Hennecke, Themistoklis Sidiropoulos +3
Time-resolved soft-x-ray-diffraction experiments give access to microscopic processes in a broad range of solid-state materials by probing ultrafast dynamics of ordering phenomena.…
Enhanced optical conductivity and many-body effects in strongly-driven photo-excited semi-metallic graphite
T. P. H. Sidiropoulos, N. Di Palo, D. E. Rivas +4
The excitation of quasi-particles near the extrema of the electronic band structure is a gateway to electronic phase transitions in condensed matter. In a many-body system, quasi-p…
Tailoring Optical Excitation to Control Magnetic Skyrmion Nucleation
Lisa-Marie Kern, Bastian Pfau, Michael Schneider +12
In ferromagnetic multilayers, a single laser pulse with a fluence above an optical nucleation threshold can create magnetic skyrmions, which are randomly distributed over the area…
High harmonic spectroscopy of quantum phase transitions in a high-T superconductor
Jordi Alcalà, Utso Bhattacharya, Jens Biegert +9
We report on the new non--linear optical signatures of quantum phase transitions in the high-temperature superconductor YBCO, observed through high harmonic generation. While the l…
Ultrafast element- and depth-resolved magnetization dynamics probed by transverse magneto-optical Kerr effect spectroscopy in the soft x-ray range
Martin Hennecke, Daniel Schick, Themistoklis Sidiropoulos +12
We report on time- and angle-resolved transverse magneto-optical Kerr effect spectroscopy in the soft x-ray range that, by analysis via polarization-dependent magnetic scattering s…
Attosecond dispersive soft X-ray absorption fine structure spectroscopy in graphite
Bárbara Buades, Dooshaye Moonshiram, Themistoklis P. H. Sidiropoulos +8
Phase transitions of solids and structural transformations of molecules are canonical examples of important photo-induced processes, whose underlying mechanisms largely elude our c…