| Mllenstedt电子双棱镜和部分相干电子束的干涉 |
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| 引用本文： | 傅淑芬.Mllenstedt电子双棱镜和部分相干电子束的干涉[J].光学学报,1987(6). |
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| 作者姓名： | 傅淑芬 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 |
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| 摘 要： | 本文应用电子光学与几何光学的相似性,从光程的计算出发,求出了电子经Mllenstedt双棱镜的偏转角,并与光学中菲涅耳(Fresnel)双棱镜进行了比较。讨论了电子束源的部分相干性对干涉场的影响,给出通过电子干涉得到的各量的表达式。
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| 关 键 词： | Mllenstedt电子双棱镜 电子束干涉 |
Mollenstedt biprism and partial coherent electron beam interference |
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| FU SHUFEN.Mollenstedt biprism and partial coherent electron beam interference[J].Acta Optica Sinica,1987(6). |
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| Authors: | FU SHUFEN |
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| Abstract: | An expression for electron deflection angle caused by Mollenstedt biprism was deduced according to the similarity between electron optics and geometrical optics. A comparison between optical Fresnel and Mollenstedt biprism was given. The effects of partial coherence of electron beam on interference field were pointed out. The obtainable maximum number of interference fringes were discussed. |
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| Keywords: | Mollentstedt biprism Electron beam interference |
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