Hard X-ray Generation from ZnO Nanowire Targets in a Non-Relativistic Regime of Laser-Solid Interactions

被引：11

作者：

Samsonova, Zhanna ^{[1
,2
,3
]}

Hoefer, Sebastian ^{[2
]}

Hollinger, Richard ^{[1
,2
,3
]}

Kaempfer, Tino ^{[1
]}

Uschmann, Ingo ^{[1
,2
]}

Roeder, Robert ^{[4
]}

Trefflich, Lukas ^{[4
]}

Rosmej, Olga ^{[5
,6
]}

Foerster, Eckhart ^{[1
,2
]}

Ronning, Carsten ^{[3
,4
]}

Kartashov, Daniil ^{[1
,3
]}

Spielmann, Christian ^{[1
,2
,3
]}

机构：

[1] Friedrich Schiller Univ, Inst Opt & Quantum Elect, Max Wien Pl 1, D-07743 Jena, Germany

[2] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany

[3] Friedrich Schiller Univ, Abbe Ctr Photon, Albert Einstein Str 6, D-07745 Jena, Germany

[4] Friedrich Schiller Univ, Inst Solid State Phys, Helmholtzweg 3, D-07743 Jena, Germany

[5] GSI Helmholtz Ctr Heavy Ion Res, Planckstr 1, D-64220 Darmstadt, Germany

[6] Goethe Univ, Inst Appl Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany

来源：

APPLIED SCIENCES-BASEL | 2018年 / 8卷 / 10期

关键词：

X-ray generation; laser-matter interaction; ultrashort laser pulses; X-ray spectroscopy; laser plasma emission; nanostructured arrays; HIGH-REPETITION-RATE; PLASMA; ABSORPTION; ELECTRONS; EMISSION; PULSES;

D O I：

10.3390/app8101728

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present a detailed investigation of X-ray emission from both flat and nanowire zinc oxide targets irradiated by 60 fs 5 x 10(16) W/cm(2) intensity laser pulses at a 0.8 mu m wavelength. It is shown that the fluence of the emitted hard X-ray radiation in the spectral range 150-800 keV is enhanced by at least one order of magnitude for nanowire targets compared to the emission from a flat surface, whereas the characteristic K-proportional to line emission (8.64 keV) is insensitive to the target morphology. Furthermore, we provide evidence for a dramatic increase of the fast electron flux from the front side of the nanostructured targets. We suggest that targets with nanowire morphology may advance development of compact ultrafast X-ray sources with an enhanced flux of hard X-ray emission that could find wide applications in highenergy density (HED) physics.

引用

页数：11

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