标题： 利用弹性波干涉消除光机械谐振器中的结构损耗 显示英文标题

标题： Eliminating Structural Loss in Optomechanical Resonators Using Elastic Wave Interference

摘要： 光机械谐振器由于通过必要的锚点来实现结构的悬置而遭受机械能量的耗散。 在这里，我们展示通过使用双盘谐振器使弹性波产生破坏性干涉，可以几乎完全消除光机械振荡器中的这种结构损耗。 我们还提出了一个分析模型和数值模型，该模型预测了观察到的弹性波的干涉。 我们的实验数据揭示了在室温下，未受应力的SiN器件在机械频率为$f=102$ MHz ($fQ = 10^{12}$) 时，机械Q值高达$10^4$。 显示英文摘要

摘要： Optomechanical resonators suffer from the dissipation of mechanical energy through the necessary anchors enabling the suspension of the structure. Here we show that such structural loss in an optomechnaical oscillator can be almost completely eliminated through the destructive interference of elastic waves using dual-disk resonators. We also present both analytical and numerical model that predicts the observed interference of elastic waves. Our experimental data reveal unstressed SiN devices with mechanical Q-factors up to $10^4$ at mechanical frequencies of $f=102$ MHz ($fQ = 10^{12}$) at room temperature.