About laser shocks dynamics for complex focal spots and structured targets

A A Aliverdiev,G B Ragimkhanov,J Skala,R Dezulian,D Batani,J Ullschmied,R Benocci,A A Amirova,K Jakubowska,E Krousky,R Dudzak

doi:10.1088/1742-6596/946/1/012013

Abstract

We have analyzed the laser driven shock behavior in experiments with double focal spots, in particular, its cumulative effect in double layer foam–metal targets, explained by multiple collisions of individual shocks in the structured target. Some of experimental shock dynamics results are in a good agreement with the theoretical and numerical predictions, but others demand for new models.

Highlights

The study of the behavior of matter at pressures on the megabars order is relevant both for fundamental science and for many applications
The idea of experiment was to investigate the influence of a low-density ablator on shock compression in the condition of a strong inhomogeneity of the focal spot
The large-scale non-uniform irradiation was set by splitting the laser beam in two equal parts with a prism and producing a double focal spot on the target

Summary

Introduction

The study of the behavior of matter at pressures on the megabars order is relevant both for fundamental science and for many applications. We have analyzed the laser driven shock behavior in experiments with double focal spots, in particular, its cumulative effect in double layer foam–metal targets, explained by multiple collisions of individual shocks in the structured target. The idea of experiment was to investigate the influence of a low-density ablator on shock compression in the condition of a strong inhomogeneity of the focal spot.

Results

Conclusion