| 圆孔的菲涅耳衍射 |
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| 引用本文： | 赖汉明,李荣基,阮志仁. 圆孔的菲涅耳衍射[J]. 大学物理, 2009, 28(10) |
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| 作者姓名： | 赖汉明 李荣基 阮志仁 |
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| 作者单位： | 香港中文大学,物理系,中国,香港;香港中文大学,物理系,中国,香港;香港中文大学,物理系,中国,香港 |
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| 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.
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| 关 键 词： | 圆孔 菲涅耳衍射 贝塞尔函数 Lommel函数 CCD照相机 |
Fresnel diffraction by a circular aperture |
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| LAI Hon-ming,LEE Wing-kee,YUEN Chi-yan. Fresnel diffraction by a circular aperture[J]. College Physics, 2009, 28(10) |
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| Authors: | LAI Hon-ming LEE Wing-kee YUEN Chi-yan |
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| Affiliation: | Department of Physics;The Chinese University of Hong Kong;Hong Kong;China |
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| Abstract: | 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 c... |
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| Keywords: | circular aperture Fresnel diffraction Bessel function Lommel function CCD camera |
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