摘要
从激光特性、光的波粒二象性出发 ,分析了激光对含能材料的热作用、冲击作用、光化学作用、电离作用等 ,并做了相应的计算。对含能材料激光点火的机理作了概括。结论 :通常情况下 ,热作用是主要的 ;光化学作用对激光波长有很强的选择性 ;电离与等离子体点火要求激光强度远大于 10 10 W /cm2 ;
Starting from the laser features and wave-particle,the effects of laser upon energetic materials like thermal effect,impacting effect,photochemical effect and ionization were analyzed,and the corresponding calculations were performed.The mechanism of laser ignition of energetic materials was summarized.And the following conclusions were arrived at.Generally,thermal effect is dominating.Photochemical effect has quite strong selectivity upon laser wavelength.Ionization and plasma ignition require that the laser intensity is far greater than 10 10W/cm 2.And the critical ignition energy decreases with the increase of laser intensity.
出处
《激光与红外》
CAS
CSCD
北大核心
2002年第4期233-236,共4页
Laser & Infrared
