摘要
得到了圆孔菲涅耳衍射光强分布的表达式,此式由贝塞尔函数的数列(或Lommel函数)给出,因此很容易利用普及的数学软件算出结果.并且利用CCD照相机量度了衍射光强分布,与运算的结果作了比较,也与Burch在1985报导的结果作了比较.
An analytic expression in terms of Bessel＇ s functions or Lommel＇ s functions of two variables, is obtained for the intensity distribution of the Fresnel diffraction by a circular aperture. The Fresnel pattern in any transverse plane at an axial distance from the aperture is then easily computable using commonly available software packages. Comparison with Burch＇s theoretical results（in 1985） is made and satisfactory agreement with experiment is found. The light intensity patterns are recorded by the use of CCD camera, which may be adapted as a student experiment in universities.
出处
《大学物理》
北大核心
2009年第10期31-34,共4页
College Physics
