The characteristics of confined ablation in laser propulsion
Zheng Zhi-Yuan (郑志远)a, Zhang Jie (张杰)a, Hao Zuo-Qiang (郝作强)a, Yuan Xiao-Hui (远晓辉)ab, Zhang Zhe (张喆)a, Lu Xin (鲁欣)a, Wang Zhao-Hua (王兆华)a, Wei Zhi-Yi (魏志义)a
a Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b State Key Laboratory of Transient Optics Technology, Chinese Academy of Sciences, Xi'an 710068, China
Abstract Compared with direct ablation, confined ablation provides an effective way to obtain a large target momentum and a high coupling coefficient. By using a transparent glass layer to cover the target surface, the coupling coefficient is enhanced by an order of magnitude. With the increase of the gap width between the target surface and the cover layer, the coupling coefficient exponentially decreases. It is found that the coupling coefficient is also related to the thickness of the cover layer.
Received: 06 April 2005
Revised: 07 November 2005
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10374116 and 60321003) and the National High Technology
Inertial Confinement Fusion Foundation of China.
Cite this article:
Zheng Zhi-Yuan (郑志远), Zhang Jie (张杰), Hao Zuo-Qiang (郝作强), Yuan Xiao-Hui (远晓辉), Zhang Zhe (张喆), Lu Xin (鲁欣), Wang Zhao-Hua (王兆华), Wei Zhi-Yi (魏志义) The characteristics of confined ablation in laser propulsion 2006 Chinese Physics 15 580
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