Effect of the Illuminating Point Spread Function and Roughness on the Speckle Correlation Field
作者: Mohamed Mansour El-NicklawyAmin Fahim HassanAdel Ebrahim ElmahdyAfaf Mahmoud Abd-RabouEzzulddin Abdoulsahib Eesee
作者单位: 1Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt
2Department of Science, Open Educational College, Baghdad, Iraq
刊名: Optics and Photonics Journal, 2019, Vol.09 (11), pp.165-177
来源数据库: Scientific Research Publishing Journal
DOI: 10.4236/opj.2019.911015
原始语种摘要: Under conditions differing from those subjected for central limit theorem, the spatial autocorrelation function of speckle pattern resulting from illuminated rough surface is investigated. Its dependence on different illuminating apertures and the average of the roughness heights is presented theoretically and experimentally. The experiments were carried out using a set of circular and square apertures having different sizes. The results indicate that, increasing the size of the illuminating aperture leads to a decrease in the width of the main lobe of the spatial autocorrelation function.
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  • illuminating 照明用的灯饰用的
  • roughness 粗糙度
  • speckle 光斑
  • pattern 模型
  • spatial 空间的
  • square 正方形
  • aperture 
  • width 幅度
  • dependence 从属
  • resulting 引起的