飞秒激光渡越辐射时间特性的实验研究

Wang Guangchang; Ma Chunsheng; Zhang JianWei; Bai Chunyan; Liu Yuhong; Zheng Zhijian

doi:10.3788/HPLPB20122406.1419

Volume 24 Issue 06

May 2012

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(06): 1419-1423

He Minbo, Jiang Houman. Scaling law in thermal deformation of high reflecting mirror under laser irradiation[J]. High Power Laser and Particle Beams, 2012, 24: 2043-2046. doi: 10.3788/HPLPB20122409.2043

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Wang Guangchang, Ma Chunsheng, Zhang JianWei, et al. 飞秒激光渡越辐射时间特性的实验研究[J]. High Power Laser and Particle Beams, 2012, 24: 1419-1423. doi: 10.3788/HPLPB20122406.1419

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飞秒激光渡越辐射时间特性的实验研究

doi: 10.3788/HPLPB20122406.1419

1.
Teaching and Research Section of Physics,Chengdu Medical College,Chengdu 610083,China;
2.
Department of Computer Science,Simao Teachers’College,Puer 665000,China;
3.
Research Center of Laser Fusion,CAEP,P.O.Box 919-986,Mianyang 621900,China

Received Date: 2011-10-25
Rev Recd Date: 2012-02-09
Publish Date: 2012-06-15

Abstract

Abstract

为了探索渡越辐射（TR）的时间特性，在100 TW掺钛蓝宝石飞秒激光器上利用光学条纹相机，在靶背表面法线方向测量了TR时间分辨成像光斑。实验测量结果显示：TR时间分辨成像光斑呈长条状，而辐射区域有发散角、有光强分布。 TR信号强而快，持续时间短，为ps量级，最先到达屏幕上。其他成分光辐射信号弱而慢，持续时间长，为ns量级，最后到达屏幕上。TR的时间特性能为鉴别和判断TR信号提供了新的依据。
- femtosecond laser,
- optical radiation,
- optical streak camera,
- transition radiation,
- time characteristic

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