Regensburg 2022 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 12: Focus Session: Nonlinear Dynamics of Nanomechanic Oscillators

DY 12.2: Vortrag

Montag, 5. September 2022, 16:00–16:15, H20

Fluctuations and strong nonlinear effects in nanomechanical resonators — •Fan Yang¹, Mengqi Fu¹, Yuxuan Jiang², and Elke Scheer¹ — ¹University of Konstanz, Konstanz, Germany — ²Anhui University, Hefei, China

Membrane resonators are ideal model systems to investigate nonlinear dynamics. Membrane resonators operated in the nonlinear regime, far beyond the Duffing regime exhibit unusual dynamic behavior, including localized overtones of spatial modulation [1], parametric flexural mode coupling, and persistent response [2]. Our research focusing on revealing the microscopic origins, their characterization, local control, exploring the universality and fluctuations [3] of the nonlinear state.

[1] Yang, Fan, et al. "Spatial modulation of nonlinear flexural vibrations of membrane resonators." Physical review letters 122.15 (2019): 154301.

[2]Yang, Fan, et al. "Persistent Response in an Ultrastrongly Driven Mechanical Membrane Resonator." Physical Review Letters 127.1 (2021): 014304.

[3]Yang, Fan, et al. "Mechanically Modulated Sideband and Squeezing Effects of Membrane Resonators" Physical Review Letters 127 (18), 184301.