Faculty mentor: Keunhan (Kay) Park
Atomic force microscopy (AFM) is often used to measure interaction forces across nanoscale gaps. In our research, a miniaturized quartz tuning fork (QTF) is used to measure these forces by attaching a sharp tip at the end of one QTF prong. To quantitatively measure the interaction force with a QTF probe, the dynamic behaviors of the QTF are modeled and correlated with the measurement. This model allows us to extract the gap-dependent interaction forces within single nanometer vacuum gaps.
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