强激光与粒子束, 2003, 15 (11): 1065, 网络出版: 2006-04-28   

芳纶纤维复合材料对激光的吸收特性研究

Absorption characteristics of the composite reinforced by polyaryl amide fibers irradiated by high power laser
作者单位
中国工程物理研究院流体物理研究所,四川绵阳,621900
摘要
利用双积分球光电管系统实验研究了不同厚度的芳纶纤维复合材料在不同强度的1.06μm激光辐照下(低于烧蚀阈值的激光强度)的反射和透射特性,在材料厚度一定时,反射率随着激光功率密度的增加而增加,透射率则呈现指数衰减;激光功率一定时,反射率随着材料厚度的增加而增加,透射率则呈现衰减.通过反射率和透过率可以确定出表面吸收和体吸收的激光能量份额.
Abstract
The absorption characteristics of the composite reinforced by polyaryl amide fibers irradiated by laser beam with a wavelength of 1.06μm were investigated using two integrated spheres and photodiode system. The intensity of laser beam, surface and volumetric reflectivity, volumetric absorption coefficient, transmissivity were obtained from the experiments. Experiments results show that volumetric reflectivity increases with both material thickness and laser intensity, volumetric absorption coefficient increases with material thickness, but decreases with laser intensity. A reasonable explanation is suggested based on the results and the material properties.

王贵兵, 刘仓理. 芳纶纤维复合材料对激光的吸收特性研究[J]. 强激光与粒子束, 2003, 15(11): 1065. 王贵兵, 刘仓理. Absorption characteristics of the composite reinforced by polyaryl amide fibers irradiated by high power laser[J]. High Power Laser and Particle Beams, 2003, 15(11): 1065.

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