5 papers
An easy technique for focus characterization and optimization of XUV and soft x-ray pulses
A. A. Muschet, A. De Andres, N. Smijesh +1
For many applications of extreme ultraviolet (XUV) and x-ray pulses a small focus size is crucial to reach the required intensity or spatial resolution. In this article, we present…
Optimized computation of tight focusing of short pulses using mapping to periodic space
Elena Panova, Valentin Volokitin, Evgeny Efimenko +9
When a pulsed, few-cycle electromagnetic wave is focused by optics with f-number smaller than two, the frequency components it contains are focused to different regions of space, b…
Non-parametric Reconstruction of Growth Index via Gaussian Processes
Zhao-Yu Yin, Hao Wei
The accelerated cosmic expansion could be due to dark energy within general relativity (GR), or modified gravity. It is of interest to differentiate between them, by using both the…
Dual-energy electron beams from a compact laser-driven accelerator
J. Wenz, K. Khrennikov, A. Döpp +10
Ultrafast pump-probe experiments open the possibility to track fundamental material behaviour like changes in its electronic configuration in real time. To date, most of these expe…
Energy limitation of laser-plasma electron accelerators
D. E. Cardenas, S. Chou, J. Xu +7
We report on systematic and high-precision measurements of dephasing, an effect that fundamentally limits the performance of laser wakefield accelerators. Utilizing shock-front inj…