Energy transfer from a laser pulse to a blast wave in reduced-pressure air atmospheres
Energy transfer from a laser pulse to a blast wave in reduced-pressure air atmospheres
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DOI：
10.1063/1.1710721
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发表时间：
2004-05
影响因子：
3.2
通讯作者：
K. Mori;K. Komurasaki;Y. Arakawa
中科院分区：
文献类型：
--
作者：
K. Mori;K. Komurasaki;Y. Arakawa
大气中横向激发的CO2激光光束在大气中聚焦，产生冲击波。从冲击波膨胀的阴影图像确定了激光诱导爆炸波的动能。结果表明，随着环境压力从100 kpa降低到10 kpa，输入激光能量转化为爆炸波能量的比例从0.45下降到0.2。在4~13J的激光能量范围内，它对激光能量不敏感。
Focusing a transversely excited atmospheric CO2 laser beam in air atmospheres induced a blast wave. The kinetic energy of a laser-induced blast wave was determined from shadowgraph images of shock wave expansion. Results showed that the fraction of input laser energy that is converted into the blast wave energy decreased from 0.45 to 0.2 concomitant with the decrease in ambient pressure from 100 to 10 kPa. Also, it was insensitive to input laser energy from 4 to 13 J.