Characteristic investigation of ablative laser propulsion driven by nanosecond laser pulses

被引：67

作者：

Zheng, ZY

Zhang, J ^{[1
]}

Lu, X

Hao, ZQ

Yuan, XH

Wang, ZH

Wei, ZY

机构：

[1] Chinese Acad Sci, Lab Opt Phys, Inst Phys, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, State Key Lab Transient Opt Technol, Xian 710068, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2006年 / 83卷 / 02期

关键词：

D O I：

10.1007/s00339-006-3498-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The momentum transfer and the specific impulse of the ablative laser propulsion of nanosecond laser irradiation on copper, lead, aluminum and graphite targets are investigated. The effects of the ambient pressure and laser focal spot sizes on the target momentum are measured. The results show that the target momentum strongly relates to the ambient pressure and target property. The highest target momentum about 2.28 g center dot cm/s is obtained on lead targets under 1 atmospheric pressure. With the increase of the focal spot sizes, the specific impulse decreases. The highest specific impulse in vacuum is about 950 s on copper targets.

引用

页码：329 / 332

页数：4

共 17 条

[11] Ablative laser propulsion: An old concept revisited [J].