Intermode coupling in nanomechanical resonators as a key for tuning the effective nonlinearity

被引：1
|
作者：
Shevyrin, Andrey A. [1 ,2 ]
Pogosov, Arthur G. [1 ,3 ]
Bakarov, Askhat K. [1 ,3 ]
Shklyaev, Alexander A. [1 ,3 ]
Naik, Akshay [2 ]
机构：
[1] RAS, SB, Rzhanov Inst Semicond Phys, 13 Lavrentyeva Ave, Novosibirsk 630090, Russia
[2] Indian Inst Sci Bangalore, Ctr Nano Sci & Engn, Bangalore 560012, Karnataka, India
[3] Novosibirsk State Univ, 2 Pirogova Str, Novosibirsk 630090, Russia
来源：
PHYSICAL REVIEW APPLIED | 2024年 / 22卷 / 06期
基金：
俄罗斯科学基金会;
关键词：
Compendex;
D O I：
10.1103/PhysRevApplied.22.L061003
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nonlinear interaction of flexural and torsional modes is experimentally studied in a cantileverlike nanomechanical resonator. The resonant frequency of each mode depends much weaker on its own amplitude than on the amplitude of another mode. This property makes it possible to widely tune the effective nonlinearity of each mode on chip, making the same system exhibit hardening, softening, or linear behavior. This nonlinear tuning in one mode is achieved by adjusting the driving frequency and amplitude of the other mode. It is shown that this effective tunability may be characteristic of resonators with a high width-to-thickness ratio.
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收藏
页数：6
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