Chin. Phys. Lett.  2003, Vol. 20 Issue (6): 877-880    DOI:
Original Articles |
Experimental Scaling for Mass Ablation Rate in Planar Targets Irradiated by Smoothed 0.351μm Laser Beam
YANG Jia-Min1,2;DING Yao-Nan1,2;ZHANG Bao-Han1,2;YANG Guo-Hong1,2;ZHENG Zhi-Jian1,2;ZHANG Wen-Hai1;HU Xin1;WANG Yao-Mei1;ZHANG Ji-Yan1;LI Jun1
1Research Center of Laser Fusion, China Academy of Engineering Physics, PO Box 919-986, Mianyang 621900 2National Key Laboratory of Plasma Physics, China Academy of Engineering Physics, PO Box 919-986, Mianyang 621900
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YANG Jia-Min, DING Yao-Nan, ZHANG Bao-Han et al  2003 Chin. Phys. Lett. 20 877-880
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Abstract Layered planar targets, consists of Al and Au layers, were irradiated by smoothed 0.351-μm-high power laser with relatively large focus spot on Xingguang II laser facility. The burnthrough time of laser ablation to Al sample has been obtained by measuring the delay time of Au N-Band x-ray emission with respect to the Al K-Band x-ray emission. The scaling law of mass ablation rate with the laser flux has been obtained by only varying the laser energy on the target surface on different shots. The experimental scaling law is greatly different from the results of Key et al. [Phys. Fluids 23(1983) 2011] and is in good agreement with the analytical model.

Keywords: 52.50.Jm      79.20.Ds     
Published: 01 June 2003
PACS:  52.50.Jm (Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))  
  79.20.Ds (Laser-beam impact phenomena)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2003/V20/I6/0877
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YANG Jia-Min
DING Yao-Nan
ZHANG Bao-Han
YANG Guo-Hong
ZHENG Zhi-Jian
ZHANG Wen-Hai
HU Xin
WANG Yao-Mei
ZHANG Ji-Yan
LI Jun
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