| 小孔近场衍射的矢量与标量角谱理论研究 |
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| 引用本文： | 李光华,滕树云.小孔近场衍射的矢量与标量角谱理论研究[J].山东师范大学学报(自然科学版),2013(2):53-55,59. |
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| 作者姓名： | 李光华 滕树云 |
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| 作者单位： | 山东师范大学物理与电子科学学院,济南250014 |
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| 基金项目： | 国家自然科学基金资助项目（10874105） |
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| 摘 要： | 文章依据角谱理论研究了，纳米小孔的近场衍射，采用矢量和标量角谱理论研究了电磁场的矢量性和衍射场中倏逝波对纳米小孔近场衍射的影响，给出了小孔近场衍射的数学表达式．理论计算了纳米尺寸下小孔的横向和纵向近场衍射光强分布，并获得了电磁场的矢量性和衍射倏逝波在小孔近场衍射的作用.
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| 关 键 词： | 近场衍射 角谱理论 倏逝波 |
STUDY OF THE NEAR- FIELD DIFFRACTION OF A NANOMETER APERTURE BY VECTOR AND SCALAR ANGULAR SPECTRUM THEORY |
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| Li Guanghua Teng Shuyun.STUDY OF THE NEAR- FIELD DIFFRACTION OF A NANOMETER APERTURE BY VECTOR AND SCALAR ANGULAR SPECTRUM THEORY[J].Journal of Shandong Normal University(Natural Science),2013(2):53-55,59. |
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| Authors: | Li Guanghua Teng Shuyun |
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| Institution: | Li Guanghua Teng Shuyun ( School of the physics and electronics, Shandong Normal University, 250014, Jinan, China ) |
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| Abstract: | The near -field diffraction of a nanometer aperture is studied according to the angular spectrum theory. The influences of the vector property of the electromagnetic field and the evanescent wave on the diffraction in near field are analyzed respectively by means of vector and scalar diffraction theory, and the mathematic expressions of the near- field diffraction are presented. The transverse and longitudinal diffraction light intensity distributions of a nanometer aperture in near - field are theoretically calculated, and the results show the important roles of the the vector property of the electromagnetic field and the evanescent wave on the near - field diffraction of a small aperture. |
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| Keywords: | near- field diffraction angular spectrum theory evanescent waves |
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