Laser propulsion with a high specific impulse using a thin film propellant  

作　　者：张翼 鲁欣 周木林 林晓宣 郑志远 李玉同 张杰 

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences [2]School of Materials Science and Technology,China University of Geosciences [3]Department of Physics,Shanghai Jiao Tong University

出　　处：《Chinese Physics B》2011年第8期466-469,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10905049);the National Basic Research Program of China (Grant No. 2007CB815101)

摘　　要：A new laser propulsion scheme with a high specific impulse is proposed in this paper. An extremely thin polyimide film is used as the propellant to eliminate thermal diffusion and sputter from the target material. It is found that a high specific impulse of 1520 s can be achieved at 1011-W/cm2 laser intensity because of economic use of the propellant. The influences of the laser intensity and the ablation area on the specific impulse are also studied in the experiment.A new laser propulsion scheme with a high specific impulse is proposed in this paper. An extremely thin polyimide film is used as the propellant to eliminate thermal diffusion and sputter from the target material. It is found that a high specific impulse of 1520 s can be achieved at 1011-W/cm2 laser intensity because of economic use of the propellant. The influences of the laser intensity and the ablation area on the specific impulse are also studied in the experiment.

关 键 词：laser plasma PROPULSION POLYIMIDE 

分 类 号：O484.41[理学—固体物理]