Contribution to a book

This paper addresses the mode switching problem in piecewise smooth implicit multilinear initial value problems (IVPs), which are relevant for modeling hybrid dynamical systems like HVAC and power systems. Unlike traditional switched systems with explicit mode descriptions, this work focuses on systems where mode information is implicitly encoded in binary-valued variables and switching conditions are defined by inequality constraints. [...]

We present novels methods aiming at recording THz waveforms in single-shot and high repetition rates, with high temporal resolution. This work is performed in the PhLAM-DESY collaboration framework, aiming at developing real-time diagnostics for THz sources, as well as monitoring the shapes of relativistic electron bunches in accelerators. [...]

An algorithm for calculating the radiation field of a charged point particle performing a helical motion in an infinite cylindrical waveguide with a multilayer side wall is found. The number of layers and their filling is arbitrary. [...]

We present a coupled-mode pumping strategy that overcomes the long-standing trade-off between conversion efficiency and optical bandwidth in soliton microcombs. Using this approach, we experimentally demonstrate an octave-spanning single soliton microcomb that achieves nearly 50% pump-to-comb conversion efficiency..

During its first phase, from 2004 up to the end of 2012, the H.E.S.S. (High Energy Stereoscopic System) experiment observed the extragalactic skies for more than 2700 hours. [...]

FLASH is a XUV and soft X-ray free-electron laser and operates as a user facility since 2005. It comprises asuperconducting LINAC with a beam energy of up to 1.35 GeV which serves two FEL beamlines in parallel:FLASH1 and FLASH2. [...]