X-ray amplification by laser controlled coherent Bremsstrahlung

被引：24
|
作者：
Hatsagortsyan, KZ [1 ]
Keitel, CH [1 ]
机构：
[1] Univ Freiburg, Fak Phys, D-79104 Freiburg, Germany
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 11期
关键词：
D O I：
10.1103/PhysRevLett.86.2277
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A coherent x-ray generation scheme is proposed which involves characteristics of free electron lasers and atomic high harmonic generation schemes. A thin solid layer or any other periodic atomic structure with limited dimensions is exposed to a short, superintense laser pulse. The electrons are extracted from the layer due to the extreme force and penetrate periodically through the ionic structure. Consequently, thousands of harmonics of the laser radiation field are shown to coherently amplify along the interaction length. The small signal gain of the generated x-ray radiation exceeds that arising from the multiphoton Compton process in plasmas and is competitive with that in the leading x-ray free electron lasers.
引用
收藏
页码：2277 / 2280
页数：4
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