Absolute time-resolved x-ray laser gain measurement.
Absolute time-resolved x-ray laser gain measurement.
复制标题
绝对时间分辨 X 射线激光增益测量。
DOI：
10.1103/physrevlett.95.173902
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发表时间：
2005
影响因子：
8.6
通讯作者：
J. Dubau
中科院分区：
文献类型：
--
作者：
T. Mocek;S. Sebban;G. Maynard;P. Zeitoun;G. Faivre;A. Hallou;M. Fajardo;S. Kazamias;B. Cros;D. Aubert;G. de Lacheze;J. Rousseau;J. Dubau
我们首次直接测量软 X 射线激光放大器增益随时间的变化。该测量基于将通过高次谐波产生获得的种子脉冲注入到 X 射线激光介质中。当种子脉冲与增益周期同步时，会发生强放大。通过精确改变 X 射线激光等离子体产生和种子脉冲注入之间的延迟，可以以亚皮秒分辨率获得软 X 射线放大器增益的实际时间演化。
We present the first direct measurement of the time evolution of the gain of a soft x-ray laser amplifier. The measurement is based on the injection of a seed pulse, obtained by high-order harmonic generation, into an x-ray laser medium. Strong amplification occurs when the seed pulse is synchronized with the gain period. By precisely varying the delay between the x-ray laser plasma creation and the seed pulse injection, the actual temporal evolution of the soft x-ray amplifier gain is obtained with a subpicosecond resolution.