| 高斯光束照射下与矩孔相关的孔径衍射 |
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| 引用本文： | 付文羽,刘正岐.高斯光束照射下与矩孔相关的孔径衍射[J].大学物理,2005,24(8):34-37. |
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| 作者姓名： | 付文羽 刘正岐 |
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| 作者单位： | 陇东学院,物理系,甘肃,庆阳,745000;陇东学院,计算机科学系,甘肃,庆阳,745000 |
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| 摘 要： | 依据基尔霍夫衍射理论，利用幂级数展开的方法，推导出傍轴条件下高斯光束的矩孔及单缝衍射的近似计算公式，并通过数值计算、数值模拟等方法对衍射场的基本特性进行了讨论。
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| 关 键 词： | 基尔霍夫衍射理论 孔径 矩孔衍射 |
| 文章编号： | 1000-0712（2005）08-0034-04 |
| 收稿时间： | 2004-09-20 |
| 修稿时间： | 2004年9月20日 |
Diffraction of Gaussian beam by a rectangular aperture |
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| FU Wen-yu,LIU Zheng-qi.Diffraction of Gaussian beam by a rectangular aperture[J].College Physics,2005,24(8):34-37. |
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| Authors: | FU Wen-yu LIU Zheng-qi |
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| Abstract: | Based on Kirchhoff's theory,the approximate formulas of a rectangular aperture and slit is derived under paraxial approximation,and by power series expanding methods,the fundamental characteristics of the diffraction field is analyzed by the numerical calculation and numerical simulation,some results consistent with other literature and experimental results are obtained. |
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| Keywords: | Kirchhoff diffraction theory aperture rectangular diffraction noise-model |
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