电子束泵浦KrF激光器进行超短脉冲的单束放大实验研究
Amplification of UV ultrashort pulse laser in e beam pumped KrF amplifier
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摘要: 电子束泵浦KrF激光器口径大、泵浦率高，可直接用于进行超短脉冲激光的放大。用天光一号电子束泵浦KrF激光器进行超短脉冲激光放大，将超短脉冲激光放大到2~3J、1.2ps, 激光功率达到2TW。测量了石英窗镜中的非线性吸收系数和超短脉冲激光脉宽的变化。Abstract: Experimental investigations were performed for amplification of ultrashort pulse laser with HeavenI ebeam pumped KrF amplifier in CIAE. A 50mJ, 420fs UV ultrashort pulse was amplified to 2-3J energy, 1.2ps pulse duration, and 2TW laser power. Experimental technique such as synchronization were describe, some parameters such as nonlinear absorb coefficient were measured in experiment. As a result, it is possible to achieve ultrastrong UV laser wih intensity higher than 1019W/cm2 in recently years．
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Key words:
- ultrashort laser pulse /
- ebeam pumped amplifier /
- krf laser /
- laser amplifier
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