| 用菲涅耳衍射理论分析圆孔(屏、球)衍射 |
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| 引用本文： | 刘云,王朴,彭双艳,高慧昀.用菲涅耳衍射理论分析圆孔(屏、球)衍射[J].毕节学院学报,2010,28(4):64-68. |
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| 作者姓名： | 刘云 王朴 彭双艳 高慧昀 |
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| 作者单位： | 毕节学院物理系,贵州,毕节,551700 |
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| 基金项目： | 国家自然科学基金，贵州省教育厅自然科学研究项目 |
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| 摘 要： | 用菲涅耳衍射理论分析圆孔(屏、球)衍射的复振幅分布,根据其复振幅分布式得到的圆孔(屏、球)衍射成像公式与半波带法和矢量法得到的结果一致。并从理论上解释了圆孔衍射和圆屏(球)衍射图样中心的异同和泊松亮斑的成因。这种方法加深了我们对衍射成像过程的认识。
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| 关 键 词： | 圆孔 圆屏 衍射 复振幅 |
Circular Aperture and Barrier & Sphere Diffraction Imaging Analysis by Fresnel Diffraction Theory |
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| LIU Yun,WANG Pu,PENG Shuang-yan,GAO Hui-yun.Circular Aperture and Barrier & Sphere Diffraction Imaging Analysis by Fresnel Diffraction Theory[J].Journal of Bijie University,2010,28(4):64-68. |
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| Authors: | LIU Yun WANG Pu PENG Shuang-yan GAO Hui-yun |
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| Institution: | LIU Yun,WANG Pu,PENG Shuang-yan,GAO Hui-yun(Department of Physics,Bijie University,Bijie,Guizhou551700,China) |
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| Abstract: | Distribution of complex amplitudes of circular aperture and barrier & sphere diffraction imaging is deduced by Fresnel diffraction theory.And imaging formula accordance with results of half-wave and vector method is obtained by their distribution of complex amplitudes.And the different of phenomenon of circular aperture and barrier & sphere diffraction imaging is theoretically studied and Poisson’s spot of causes is analyzed.So the method could help ones to understand diffraction imaging’s process. |
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| Keywords: | Circular Aperture Circular Barrier Diffraction Complex Amplitudes |
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