Observation of high transient gain in the germanium x-ray laser at 19.6 nm

被引:78
作者
Warwick, PJ
Lewis, CLS
Kalachnikov, MP
Nickles, PV
Schnurer, M
Behjat, A
Demir, A
Tallents, GJ
Neely, D
Wolfrum, E
机构
[1] Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland
[2] Max Born Inst, D-12489 Berlin, Germany
[3] Univ Essex, Dept Phys, Colchester CO4 3SQ, Essex, England
[4] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England
[5] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[6] Univ York, Dept Phys, York YO1 5DD, N Yorkshire, England
关键词
D O I
10.1364/JOSAB.15.001808
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The transient-excitation pumping scheme, in which a picosecond duration pulse rapidly heats the plasma preformed by a low-intensity nanosecond pulse, was used to pump the Ne-like germanium, J = 0-1 transition at 19.6 nm. A small-signal gain coefficient of 30 cm(-1) was measured for targets less than or equal to 5 mm long. (C) 1998 Optical Society of America.
引用
收藏
页码:1808 / 1814
页数:7
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