Efficiency of recoil momentum generation during femtosecond laser ablation of copper in vacuum

被引：2

作者：

Loktionov, E. Yu ^{[1
]}

Protasov, Yu S. ^{[1
]}

Protasov, Yu Yu ^{[1
]}

机构：

[1] NE Bauman Moscow State Tech Univ, 5 Bldg 1 2nd Baumanskaya Str, Moscow 105005, Russia

来源：

JOURNAL OF APPLIED SPECTROSCOPY | 2013年 / 80卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

laser ablation; radiative energy conversion efficiency; momentum coupling coefficient; laser thrusters; MOLECULAR-DYNAMICS SIMULATION; OPTOMECHANICAL CHARACTERISTICS; CONDENSED MEDIA; PULSE DURATION; ION EMISSION; METALS; IMPULSE; GAS; PICOSECOND; TARGETS;

D O I：

10.1007/s10812-013-9754-z

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A combination of interferometric techniques is used to determine the specific impulse (similar to 250-300 s), specific mechanical recoil momentum (momentum coupling, 1-3a (TM) 10(-4) Na (TM) s/J), efficiency with which the laser energy is converted to kinetic energy of the gas-plasma fl ow (similar to 0.1-0.55), and degree of monochromaticity (similar to 0.75-0.82) of the gas-plasma flow during femtosecond (tau similar to 45 fs, lambda similar to 800 nm) ablation of copper in vacuum. The experimental results are compared with published data covering a wide range of laser interaction parameters.

引用

页码：249 / 257

页数：9

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