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Updated: Jan 20, 2026
Standing/Stationary Waves and Simple Harmonics
Published on: April 30, 2023
Resonance Control of a Graphene Drum Resonator in a Nonlinear Regime by a Standing Wave of Light
Taichi Inoue1, Yuki Anno1, Yuki Imakita1
1Department of Physics and Electronics, Osaka Prefecture University, Sakai 599-8531, Japan.
Abstract:
We demonstrate the control of resonance characteristics of a drum-type graphene mechanical resonator in a nonlinear oscillation regime using the photothermal effect, which is induced by a standing wave of light between graphene and a substrate. Unlike the resonance characteristics of a conventional Duffing-type nonlinearity, those of the nonlinear oscillation regime are modulated by the standing wave of light with a contribution of the scattered light of an actuation laser, despite a slight variation of amplitude. Numerical calculations conducted with a combination of equations of heat and motion with the Duffing-type nonlinearity explain this modulation: the photothermal effect delays the modulation of graphene stress or tension.
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