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

被引：3
作者：
Wagner, F. [1 ,2 ]
Hornung, J. [3 ]
Schmidt, C. [4 ]
Eckhardt, M. [5 ]
Roth, M. [3 ]
Stoehlker, T. [1 ,2 ]
Bagnoud, V. [1 ,2 ]
机构：
[1] GSI Helmholtzzentrum Schwerionenforsch, Planckstr 1, D-64291 Darmstadt, Germany
[2] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany
[3] Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 9, D-64289 Darmstadt, Germany
[4] Hsch Darmstadt, Haardtring 100, D-64295 Darmstadt, Germany
[5] Tech Hsch Mittelhessen, Wilhelm Leuschner Str 13, D-61169 Friedberg, Germany
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2017年 / 88卷 / 02期
关键词：
GENERATION; PULSE;
D O I：
10.1063/1.4975827
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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 30 nm with sub-nanometer resolution and a temporal window of 10 ps with 50 fs 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. Published by AIP Publishing.
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页数：7
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