用聚焦离子束加工漂移管Zernike位相板的Janus柱面
Focused Ion Beam fabrication of Janus bimetallic cylinders acting as drift~tube Zernike phase plates
摘要：
现代纳米技术为制造微米和亚微米级的结构和器件提供了新的机会。在这里，我们使用聚焦离子束技术来实现漂移管Zernike相位板的电子，其操作是基于在Janus双圆柱体的接触电位的存在下，在类似的方式静电Aharonov-Bohm效应的双金属丝。我们使用电子Fraunhofer干涉来证明，这样的微柱结构引入相移，可以通过改变它们的尺寸，特别是它们的高度来调整到所需的值。
英文摘要：
Modern nanotechnology techniques offer new opportunities for fabricating structures and devices at the micron and sub-micron level. Here, we use focused ion beam techniques to realize drift tube Zernike phase plates for electrons, whose operation is based on the presence of contact potentials in Janus bimetallic cylinders, in a similar manner to the electrostatic Aharonov-Bohm effect in bimetallic wires. We use electron Fraunhofer interference to demonstrate that such bimetallic pillar structures introduce phase shifts that can be tuned to desired values by varying their dimensions, in particular their heights.
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