Absolute time-resolved x-ray laser gain measurement -: art. no. 173902

被引：29
作者：
Mocek, T
Sebban, S
Maynard, G
Zeitoun, P
Faivre, G
Hallou, A
Fajardo, M
Kazamias, S
Cros, B
Aubert, D
de Lachèze-Murel, G
Rousseau, JP
Dubau, J
机构：
[1] ENSTA, Ecole Polytech, LOA, F-91761 Palaiseau, France
[2] Univ Paris 11, Lab Phys Gaz & Plasmas, F-91405 Orsay, France
[3] Inst Super Tecn, Ctr Fis Plasmas, P-1049001 Lisbon, Portugal
[4] Univ Paris 11, Lab Interact Rayonnement X Avec Mat, F-91405 Orsay, France
[5] CEA, DIF, F-91680 Bruyeres Le Chatel, France
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.95.173902
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：4
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