【摘要】 以漫射近似理论为基础 ,考虑在超短脉冲垂直入射半无限均匀介质和有限板状介质两种情况下 ,介质的厚度d ,吸收系数μa,散射系数 μs 及各向异性因子g对漫反射强度及脉冲形状的定量影响。更多还原

【Abstract】 In the paper,the laser pulse energy will be attenuated in the turbid media and the pulse shape will be changed by scattering and absorption.Besides,the ultra short laser pulse will be widened by the diffusive scattering.The various medium parameters have different influence on the reflection of the laser pulse.Based on the diffusion approximation theory,the boundary condition of semi-infinite homogeneous media,the influence of the absorption μ_a,the scattering μ_s and the anisotropy coefficientg on the ultra short laser pulse in the condition has been researched.更多还原