Spatiotemporal stability of a femtosecond hard-X-ray undulator source studied by control of coherent optical phonons

被引：153

作者：

Beaud, P. ^{[1
]}

Johnson, S. L. ^{[1
]}

Streun, A. ^{[1
]}

Abela, R. ^{[1
]}

Abramsohn, D. ^{[1
]}

Grolimund, D. ^{[1
]}

Krasniqi, F. ^{[1
]}

Schmidt, T. ^{[1
]}

Schlott, V. ^{[1
]}

Ingold, G. ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.99.174801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the temporal and spatial stability of the first tunable femtosecond undulator hard-x-ray source for ultrafast diffraction and absorption experiments. The 2.5-1 angstrom A output radiation is driven by an initial 50 fs laser pulse employing the laser-electron slicing technique. By using x-ray diffraction to probe laser-induced coherent optical phonons in bulk bismuth, we estimate an x-ray pulse duration of 140 +/- 30 fs FWHM with timing drifts below 30 fs rms measured over 5 days. Optical control of coherent lattice motion is demonstrated.

引用

页数：4

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