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This is a Experimental Study study.

October 7, 2025PhotoniXOpen Access

Frequency comb-based time-domain tracking of AFM cantilever dynamics from picometre-scale noise to micron-scale nonlinear motion

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This technique tracks nonlinear motions in AFM cantilevers, suggesting advances in mechanical dynamics understanding.

The approach enables real-time measurement of AFM cantilevers' motion across six orders of magnitude.
Our technique captures complex behaviours such as mode coupling and hysteresis in mechanical systems.
It overcomes sensitivity and linearity trade-offs seen in conventional optical methods for dynamic tracking.
This methodology presents a novel way to enhance precision in force sensing and improve AFM technology.

Na et al. (2025) studied this question.

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