Femtosecond time-resolved x-ray diffraction with a laser-produced plasma x-ray source

被引：2

作者：

Rousse, A ^{[1
]}

Rischel, C ^{[1
]}

Uschmann, I ^{[1
]}

Albouy, PA ^{[1
]}

Geindre, JP ^{[1
]}

Audebert, P ^{[1
]}

Gauthier, JC ^{[1
]}

Förster, E ^{[1
]}

Martin, JL ^{[1
]}

Antonetti, A ^{[1
]}

机构：

[1] ENSTA, Lab Opt Appl, CNRS, UMR7639,INSERM,U451, F-91761 Palaiseau, France

来源：

TIME STRUCTURE OF X-RAY SOURCES AND ITS APPLICATIONS | 1998年 / 3451卷

关键词：

ultrafast x-ray source; time-resolved x-ray diffraction; laser-produced plasma; disordering; toroidally bent crystal;

D O I：

10.1117/12.331846

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optical pump, x-ray diffraction probe experiments have been used to study the lattice dynamics of organic materials using a laser-produced plasma x-ray source. The x-ray source is generated from a 10 Hz, 26 mJ, 120 fs laser beam focused on a silicon wafer target. The emitted K alpha x-ray radiation is used to probe a cadmium arachidate Langmuir-Blodgett film and a TlAP crystal optically perturbed at laser fluences from 1.8 J/cm(2) to 27 J/cm(2). Ultrafast disordering inside the lattice - within a time scale below 600 fs to few tens of picoseconds - is clearly observed and produce a drop of the probe x-ray diffracted signal.

引用

页码：22 / 29

页数：8

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