Dielectric control of high Q nanomechanical resonators (A07)

高Q值纳米机械谐振器的介电控制（A07）

• 批准号: 250370478
• 金额: --
• 依托单位: Lehrstuhl für Nano- und Quantensensorik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/250370478?language=en
• 关键词: Dielectric; control; nanomechanical; resonators; A07

We explore nanomechanical resonators fabricated from strongly pre-stressed material offering a high mechanical qual-ity factor. Besides the established amorphous silicon nitride, we will focus on crystalline InGaP resonators in which dissipation from configurational material defects should be suppressed. Refined dielectric control schemes based multi-electrode layouts will be developed to implement tunable coupling and to induce bistability. Finally, the nonlinear dy-namics of two coupled nanomechanical modes under large amplitude vibration will be studied to investigate phenomena such as self-oscillation, synchronization, parametric resonance and injection locking.

我们探索纳米机械谐振器制造的强预应力材料提供了一个高的机械质量因子。除了已建立的非晶氮化硅，我们将专注于晶体InGaP谐振器中，从配置材料缺陷的耗散应被抑制。将开发基于多电极布局的精细介电控制方案以实现可调谐耦合并诱导双稳态。最后，我们将研究两个耦合纳米机械模式在大振幅振动下的非线性动力学，以研究自振荡、同步、参数共振和注入锁定等现象。