Contributions to a conference proceedings

Astrophysical neutrinos are excellent probes of astroparticle physics and high-energy physics. With energies far beyond solar, supernovae, atmospheric, and accelerator neutrinos, high-energy and ultra-high-energy neutrinos probe fundamental physics from the TeV scale to the EeV scale and beyond. [...]

Within the TESLA Linear Collider concept X-ray FELs together with different kinds of conventional undulators and wigglers will serve as radiation sources for an X-ray user facility which is considered as an integral part of the laboratory. The paper discusses both arguments for the choice of FEL parameters and expected properties of FEL radiation..

For the VUV-FEL at the TESLA Test Facility a 30 m long combined function undulator is under construction which integrates an alternating sequence of focusing and defocusing quadrupoles (FODO lattice) with an sinusoidally varying undulator field having a period length of 27.3 mm. First results of magnetic measurements were performed on a 0.9 m long prototype structure and are reported and discussed in this contribution. [...]

Since the Free Electron Laser process is based on the interaction of an electron beam with the photon beam, an excellent spatial overlap of the two beams is mandatory. The aim of beam based alignment is to obtain a beam trajectory on an arbitrary straight line over the length of the undulator. [...]

The generation and acceleration of ultra-short, high quality electron beams has attracted more and more interestin accelerator science. Electron bunches with these properties are necessary to operate and test novel diagnosticsand advanced high gradient accelerating schemes. [...]

Materials with bimodal grain size distributions have an attractive combination of strength and ductility. Harmonic structure materials are a category of bimodal-structure materials with a specific microstructure design. [...]

We present a wavelength shifting method suitable for high power lasers. We demonstrate our concept via simulations and experimentally shift an 80 W, 200 fs laser at 1030 nm by ±30 nm..

We introduce the bow tie multi-pass cell as a new scheme for post-compression of high-energy laser pulses, overcoming current limits of Herriott-type multi-pass cell-based post-compression imposed mainly by mirror damage threshold limitations..

We present photon TMDs generated using the Parton Branching Method with QED evolution. We discuss the TMD’s properties and compare it to the gluon TMD. [...]

The present work describes the design and performance of a vacuum compatible portable mini chamber for temperature dependent GISAXS and GIWAXS studies of thin films and multilayer structures. The water cooled body of the chamber allows sample annealing up to 900 K using ultra high vacuum compatible (UHV) pyrolytic boron nitride heater, thus making it possible to study the temperature dependent evolution of structure and morphology of two-dimensional nanostructured materials [...]