Large gain in Ne-like iron and Ni-like tin and silver plasmas produced by multiple laser pulse irradiation

被引：19

作者：

Sebban, S ^{[1
]}

Ros, D ^{[1
]}

McPhee, AG ^{[1
]}

Albert, F ^{[1
]}

Carillon, A ^{[1
]}

Jaegle, P ^{[1
]}

Jamelot, G ^{[1
]}

Klisnick, A ^{[1
]}

Lewis, CLS ^{[1
]}

Smith, R ^{[1
]}

Tallents, GJ ^{[1
]}

Zeitoun, P ^{[1
]}

机构：

[1] Univ Paris Sud, Lab Spect Atom & Ion, F-91405 Orsay, France

来源：

SOFT X-RAY LASERS AND APPLICATIONS II | 1997年 / 3156卷

关键词：

X-ray laser; multi-pulse pumping; nickel-like and neon-like ions; collisional scheme; saturation;

D O I：

10.1117/12.284822

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This work has consisted in demonstrating that high gain can be achieved by pumping x-ray lasers (XRL) with a combination of a high intensity and short duration driving pulses (similar to 100 ps). Short pulses are very well suited for pumping collisional XRL since a high lasant ion density, electron density and temperature can be achieved simultaneously. We have successfully tested this pumping scheme on the 4d-4p (J=0-1) transition of Ni-like tin (lambda similar to 11.93 nm) and silver (lambda similar to 13.89 nm) as well as on the 3p-3s (J=0-1) Ne-like iron (lambda similar to 25.5 nm) at an intensity of similar to 2x10(13) Wcm(-2) (130 ps in duration). The driving laser (lambda=1.06 mu m) was composed of three pulses (a prepulse and two main pulses). Large amplifications were demonstrated in tin and silver (respectively GL similar to 12 and GL similar to 16). Finally, the saturation of the 3p-3s (J=0-1) transition of Ne-like iron at 25.5 nm was achieved on both pumping pulses, using a prepulse of 10(9) Wcm(-2). A gain coefficient of 15+/-3 cm(-1) (GL similar to+/-5) on the first main pulse and 12+/-1 cm(-1) (GL similar to 23+/-2) on the second one was measured.

引用

页码：11 / 20

页数：10