Influence of Surface Radius Curvature on Laser Plasma Propulsion with Ablation Water Propellant

The surface shape of liquid water is well controlled during nanosecond pulse laser ablation plasma propulsion. In this study, we measured the effect of the shape on the coupling coefficient and the specific impulse. We found that the coupling coefficient and specific impulse could be optimized by va...

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Bibliographic Details
Published in:Plasma science & technology 2016-10, Vol.18 (10), p.1034-1037
Main Author: 梁田 郑志远 张思齐 汤伟冲 肖珂 梁文飞 高禄 高华
Format: Article
Language:English
Subjects:
凸曲面
推进剂
液态水
等离子体推进
系数和
脉冲激光烧蚀
表面形貌
表面曲率
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Summary:The surface shape of liquid water is well controlled during nanosecond pulse laser ablation plasma propulsion. In this study, we measured the effect of the shape on the coupling coefficient and the specific impulse. We found that the coupling coefficient and specific impulse could be optimized by varying the surface convexity. Based on the analysis of the surface radius curvature, we demonstrate that the convex surface changes the laser focal positions to achieve high efficiency.
ISSN:1009-0630
DOI:10.1088/1009-0630/18/10/11