Origin of microstructures in picosecond X-ray laser beams

被引：30
|
作者：
Guilbaud, O.
Klisnick, A.
Cassou, K.
Kazamias, S.
Ros, D.
Jamelot, G.
Joyeux, D.
Phalippou, D.
机构：
[1] Univ Paris Sud, CNRS, UMR 8624, Lab Interact Rayonnement,LIXAM, F-91405 Orsay, France
[2] Ctr Sci Orsay, Lab Charles Fabry, Inst Opt, LCFIO, F-91403 Orsay, France
来源：
EUROPHYSICS LETTERS | 2006年 / 74卷 / 05期
关键词：
D O I：
10.1209/epl/i2006-10038-4
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Beam sections of transient collisional excitation (TCE) soft X-ray lasers exhibit highly contrasted intensity modulations forming complex patterns. We present model calculations that reproduce these experimental observations both qualitatively and quantitatively. The low spatial coherence, high longitudinal coherence and short pulse duration of the source are shown to control the visibility of the beam structures. Comparison with other types of laser-based soft X-ray lasers is discussed. We derive simple relationships that relate the spatial and temporal characteristics of the emitting source to the main features of the beam small-scale structures.
引用
收藏
页码：823 / 829
页数：7
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