High-average-power 2-kHz laser for generation of ultrashort x-ray pulses

被引:71
作者
Jiang, Y [1 ]
Lee, TW [1 ]
Li, W [1 ]
Ketwaroo, G [1 ]
Rose-Petruck, CG [1 ]
机构
[1] Brown Univ, Dept Chem, Providence, RI 02912 USA
关键词
D O I
10.1364/OL.27.000963
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a Ti:sapphire-based laser-x-ray system specifically designed for generation of ultrafast x-ray pulses in the tenths-of-nanometers spectral range at a 2-kHz repetition rate. To obtain high-contrast laser pulses we divide the laser system into a section for generation of microjoule. high-contrast pulses with pulse cleaning and a subsequent section for chirped-pulse amplification and pulse compression. This laser section operates in conjunction with an x-ray-generation section based on a moving copper wire in a He atmosphere. The high reliability of the entire system permits maintenance-free production of x-ray pulses over tens of hours. Average x-ray fluxes of 10(13) photons/(s 4pi sr 1 keV) at 3 keV and 10(9) photons/(s 4pi sr) above 5 keV of photon energy are produced. (C) 2002 Optical Society of America.
引用
收藏
页码:963 / 965
页数:3
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