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We present a theoretical framework for the dynamic calibration of the higher eigenmode
parameters (stiffness and optical lever inverse responsivity) of a cantilever. The
method is based on the tip–surface force reconstruction technique and does not require
any prior knowledge of the eigenmode shape or the particular form of the tip–surface
interaction. The calibration method proposed requires a single-point force measurement
by using a multimodal drive and its accuracy is independent of the unknown physical
amplitude of a higher eigenmode.
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