Single-crystal diamond optomechanical devices have the potential to enable fundamental studies and technologies coupling mechanical vibrations to both light and electronic quantum systems. Here, we demonstrate a single-crystal diamond optomechanical system and show that it allows excitation of diamond mechanical resonances into self-oscillations with amplitude > 200 nm . The resulting internal stress field is predicted to allow driving of electron spin transitions of diamond nitrogen-vacancy centers. The mechanical resonances have a quality factor > 7 × 10 5 and can be tuned via nonlinear frequency renormalization, while the optomechanical interface has a 150 nm bandwidth and 9.5 fm / Hz sensitivity. In combination, these features make this system a promising platform for interfacing light, nanomechanics, and electron spins.
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机译：单晶钻石机械设备有可能使基本研究和技术耦合到光和电子量子系统的机械振动。在这里，我们展示了一个单晶钻石机械系统，并表明它允许将金刚石机械共振的激励与振幅> 200nm的自振荡。预测所得到的内应力场允许钻石氮空位中心的电子旋转转变。机械共振具有质量因子> 7×10 5，可以通过非线性频率重整调谐，而光学机械接口具有150nm带宽和9.5 fm / hz灵敏度。组合，这些功能使该系统成为接口光，纳米力学和电子旋转的有希望的平台。
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