2025/12/08 by Zinth, Agnes, Houri, Samer, Poot, Menno
Physics and Astronomy · Engineering · Materials Science · #Mechanical and Optical Resonators #Advanced MEMS and NEMS Technologies #Nonlocal and gradient elasticity in micro/nano structures
paper · doi:10.48550/arxiv.2512.07427
Studying the dynamical behavior of micro- and nano-mechanical systems (MEMS and NEMS) is essential in various fields from nonlinear dynamics to quantum technologies. Hence, it is important to be able to precisely monitor the mechanical properties of MEMS and NEMS devices. In this work, we show how to track and spatially map various properties of a mechanical resonator, such as frequency shift, linewidth, and nonlinearity, by aptly choosing three closely-spaced drive frequencies and using phase-locked loops. This technique tracks changes in the system faster and more efficiently, without the need for repeated frequency sweeps of the oscillator response, simply by employing three phase-locked tones.