摘要
分析了CO2激光在军事上应用的主要特性及烟幕对激光的衰减原理,阐述了在烟幕试验柜中测试烟幕对激光的质量消光系数的试验方法和主要步骤。测试了红磷、HC和石墨烟幕对CO2激光器发射的10．6μm激光的消光系数,并绘制了激光功率随时间变化的曲线。依据实验结果,石墨烟幕对CO2激光具有良好的消光作用,质量消光系数为1．284．m2／g;红磷烟幕对该波段激光具有较为明显的削弱作用,质量消光系数为0．603m2／g;HC烟幕对该波段激光几乎没有衰减作用,质量消光系数小于0．1m2／g。分析表明,烟幕对10．6μm激光的消光系数随入射光的功率增加而下降,空气湿度增加,则红磷和HC因幕的消光系数将明显增大。
The primary military characteristics of CO2 laser and the principle of the extinction of smoke to laser emission were elaborated. The testing method and basic steps of the experiment to test the extinction coefficients of smoke screen to laser emission were expounded. The extinction coefficients of red phosphorus smoke, HC smoke and graphite smoke to 10.6μm laser emission in a smoke chamber were tested and discussed. The curves of laser power changed with time were drawn. By the experimental results,when the incident power is 1 W, the mass extinction coefficients of these three smokes to 10.6μm laser emission are 1. 284,0. 603 and 0.086m^2/g, which indicate the graphite smoke has the best ability of extinction to 10.6μm laser emission while red phosphorus smoke has a better ability and HC smoke hardly has ability to screen 10.6μm laser emission. By the analysis, the extinction coefficient decreases while the power of incident emission increases. The extinction coefficients of red phosphorus and HC smokes to 10.6μm laser emission increase when the humidity of the circumstance is enhanced.
出处
《激光与红外》
CAS
CSCD
北大核心
2006年第2期144-146,共3页
Laser & Infrared
关键词
CO2
激光
红磷
石墨
HC
烟幕
消光系数
CO2
laser
red phosphorus
graphite
Halogenated organic Compound
smoke screen
extinction coefficient
