摘要
利用双积分球-光电管系统,开展了不同厚度的芳纶纤维/环氧、碳纤维/环氧复合材料在不同强度(低于烧蚀阈值)的1.319μm连续激光辐照下的能量耦合规律研究。结果表明:芳纶纤维/环氧复合材料的反射率、能量耦合率随材料厚度增加而增大,透射率随材料厚度增加而减小;在材料厚度一定时,反射率、透射率随激光强度增加而增大,能量耦合率随激光强度增加而减小;体吸收系数随材料厚度的增加而减小,激光强度的变化对其没有影响。碳纤维/环氧复合材料的反射率随激光强度增加而增大,能量耦合率随激光强度的增加而减小,材料厚度对反射率和能量耦合率的影响不大。
The coupling rules of different thickness polyaryl amide-fibers/epoxy and carbon-fibers/epoxy composites radiated by different intensity continuous wave laser beam with wavelength of 1. 319 μm were studied by double integrating spheres-photodiode system. The results show that the reflectivity and energy coupling rate of polyaryl amide-fibers/epoxy composite increase while it＇s transmissivity decreases when composite thickness increases. The reflectivity and transmissivity increase but energy coupling rate decreases when laser intensity increases. Although the bulk absorption coefficient decreases when composite thickness increases, the change of laser intensity has no effect on it. The carbon-fiber/epoxy composite＇s reflectivity increase and it＇s energy coupling rate decreases when laser intensity increases, but the change of material thickness has no effect on them.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2007年第10期1599-1602,共4页
High Power Laser and Particle Beams
关键词
连续激光
复合材料
能量耦合
双积分球-光电管
Continuous laser
Composite
Energy coupling
Double integrating spheres-photodiode
