The laser scattering of aluminum surfaces with random and periodic roughness distribution


Yaojun Wu1,2,Qunshu Wang2,Xisheng Ye2,Lixiong Wu2,Chuanxiang Tang1,Xinwei Lin2,Lijun Wang2,Gang Feng2(1.Department of Engineering Physics,Tsinghua University,Beijing 100084,China;2.State Key Laboratory of Laser Interaction with Matter,Northwest Institute of Nuclear Technology,Xi'an 710024,China)


In this paper,measuring results of laser scattering from rough aluminum samples by using integrating spheres are presented.The aluminum samples are diamond-turned to different roughness with random and periodic roughness distribution.The total integrated scattering(TIS)is measured to represent the scattering properties of rough surface.From the experimental results,we can conclude that the TIS value for random roughness distribution agrees well with Beckmann theory,while the measuring data for periodic roughness distribution don't show such agreement.


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