Harald Redlin

TL;DR: In this paper, the performance of a free-electron laser operating at a wavelength of 13.7 nm where unprecedented peak and average powers for a coherent extreme-ultraviolet radiation source have been measured.

TL;DR: In this article, the authors dealt with TTF/FLASH in the XFEL context, general layout of the X-FEL facility, the X FEL accelerator, undulators for SAES and spontaneous emission, infrastructure and auxiliary systems, commissioning and operation, project management and organization, cost and time schedule.

TL;DR: The Free-electron LASer (FLASH) is a unique source for extremely bright ultra-short laser-like pulses tunable in a wide spectral range in the extreme ultraviolet and soft x-ray region as discussed by the authors.

TL;DR: This work uses femtosecond X-ray pulses from a free-electron laser to study thin film samples with magnetic domain patterns and observes an infrared-pump-induced change of the spin structure within the domain walls on the sub-picosecond timescale, demonstrating the importance of spin-dependent electron transport between differently magnetized regions as an ultrafast demagnetization channel.

TL;DR: In this paper, the authors used the time domain reflectometry method to measure dielectric properties of methanol mixtures with ethanol and 1-propanol in the frequency range 10 MHz to 20 GHz.