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Comparison of Different Excitation Schemes in Bimodal Atomic Force Microscopy in Air and Liquid Environments
Acta Mechanica Solida Sinica ( IF 2.2 ) Pub Date : 2020-11-06 , DOI: 10.1007/s10338-020-00203-x
Zhenyang Huang , Pengfei Wen , Xilong Zhou

Bimodal amplitude modulation atomic force microscopy (AM-AFM) is widely used in nanoscale topography and compositional contrast imaging for various materials. In this work, we use computational simulation to compare the dynamic behaviors of AFM cantilevers in three commonly used excitation schemes in bimodal AM-AFM, i.e., the cantilever base excitation, the cantilever end excitation, and the uniform excitation along the length of the cantilever, in both air and liquid environments. The amplitude and phase spectroscopy curves and the frequency responses acquired from the three excitation schemes are compared and discussed. The results would be useful in guiding the selection of excitation methods and the optimization of imaging conditions.



中文翻译:

空气和液体环境中双峰原子力显微镜中不同激发方案的比较

双峰振幅调制原子力显微镜(AM-AFM)被广泛用于各种材料的纳米级地形和成分对比成像。在这项工作中,我们使用计算仿真来比较双模态AM-AFM中三种常用激励方案中AFM悬臂的动态行为,即悬臂基部激励,悬臂端部激励和沿悬臂长度的均匀激励。在空气和液体环境中都可以使用。比较和讨论了从三种激励方案获得的振幅和相位光谱曲线以及频率响应。结果将有助于指导激发方法的选择和成像条件的优化。

更新日期:2020-11-06
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