Backreflection diagnostics for ultra-intense laser plasma experiments based on frequency resolved optical gating.

Abstract

We report on the development and implementation of a time resolved backscatter diagnostics for high power laser plasma experiments at the petawatt-class laser facility PHELIX. Pulses that are backscattered or reflected from overcritical plasmas are characterized spectrally and temporally resolved using a specially designed second harmonic generation frequency resolved optical gating system. The diagnostics meets the requirements made by typical experiments, i.e., a spectral bandwidth of more than 30nm with sub-nanometer resolution and a temporal window of 10ps with 50fs temporal resolution. The diagnostics is permanently installed at the PHELIX target area and can be used to study effects such as laser-hole boring or relativistic self-phase-modulation which are important features of laser-driven particle acceleration experiments.

DOI: 10.1063/1.4975827

Cite this paper

@article{Wagner2017BackreflectionDF, title={Backreflection diagnostics for ultra-intense laser plasma experiments based on frequency resolved optical gating.}, author={Florian Wagner and Julius Hornung and C Schmidt and Mark Eckhardt and M . Roth and Th . St{\"{o}hlker and Vincent Bagnoud}, journal={The Review of scientific instruments}, year={2017}, volume={88 2}, pages={023503} }