论文标题
在耦合模式光子晶体装置中增强的非线性光学机电
Enhanced nonlinear optomechanics in a coupled-mode photonic crystal device
论文作者
论文摘要
光和机械振动之间光学相互作用的非线性成分有望有许多令人兴奋的古典和量子机械应用，但通常很弱。在这里，我们通过在光子晶体设备中使用成对的耦合光学模式和机械模式来展示非线性光学测量机械运动的能力测量。在同一设备中，我们以强大的输入功率显示线性光学机械测量，并揭示两个增强功能如何相关。我们的设计利用各向异性机械弹性，在机械模式之间产生强耦合，同时不改变光学性能。使用辅助激光器和热优化的设备设计执行光学模式的其他热光音调。我们设想在多模语音激光，两次呼吸器和最终非线性量子光学力学中广泛使用这种增强方案。
The nonlinear component of the optomechanical interaction between light and mechanical vibration promises many exciting classical and quantum mechanical applications, but is generally weak. Here we demonstrate enhancement of nonlinear optomechanical measurement of mechanical motion by using pairs of coupled optical and mechanical modes in a photonic crystal device. In the same device we show linear optomechanical measurement with a strongly reduced input power and reveal how both enhancements are related. Our design exploits anisotropic mechanical elasticity to create strong coupling between mechanical modes while not changing optical properties. Additional thermo-optic tuning of the optical modes is performed with an auxiliary laser and a thermally-optimised device design. We envision broad use of this enhancement scheme in multimode phonon lasing, two-phonon heralding and eventually nonlinear quantum optomechanics.
