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首页> 外文期刊>Review of Scientific Instruments >Note: High-speed Z tip scanner with screw cantilever holding mechanism for atomic-resolution atomic force microscopy in liquid
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Note: High-speed Z tip scanner with screw cantilever holding mechanism for atomic-resolution atomic force microscopy in liquid

机译：注意：带有螺钉悬臂固定机构的高速Z端扫描仪，用于液体中的原子分辨率原子力显微镜

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摘要

High-speed atomic force microscopy has attracted much attention due to its unique capability of visualizing nanoscale dynamic processes at a solid/liquid interface. However, its usability and resolution have yet to be improved. As one of the solutions for this issue, here we present a design of a high-speed Z-tip scanner with screw holding mechanism. We perform detailed comparison between designs with different actuator size and screw arrangement by finite element analysis. Based on the design giving the best performance, we have developed a Z tip scanner and measured its performance. The measured frequency response of the scanner shows a flat response up to ∼10 kHz. This high frequency response allows us to achieve wideband tip-sample distance regulation. We demonstrate the applicability of the scanner to high-speed atomic-resolution imaging by visualizing atomic-scale calcite crystal dissolution process in water at 2 s/frame.
机译：高速原子力显微镜由于其在固/液界面上可视化纳米级动态过程的独特能力而备受关注。但是，其可用性和分辨率尚待提高。作为此问题的解决方案之一，在这里，我们介绍一种带有螺丝固定装置的高速Z轴扫描仪的设计。我们通过有限元分析对不同执行器尺寸和螺丝排列的设计进行详细比较。基于提供最佳性能的设计，我们开发了Z型尖端扫描仪并对其性能进行了测量。扫描仪测得的频率响应显示高达10 kHz的平坦响应。这种高频响应使我们能够实现宽带尖端采样距离调节。我们通过可视化原子级方解石晶体在2 s /帧的水中溶解过程来证明扫描仪对高速原子分辨率成像的适用性。

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