论文标题
宏观光学机械系统的光热效应，具有腔内非线性光学晶体
Photothermal effect in macroscopic optomechanical systems with an intracavity nonlinear optical crystal
论文作者
论文摘要
腔内挤压是一种有前途的技术，可以提高引力波探测器的灵敏度，并对基态进行冷的光学振荡器。但是，光热效应可能会改变由于光腔中非线性光学晶体的存在而导致的光力耦合的发生。我们提出了一种新的方法，通过测量光力振荡器的敏感性并识别净光学弹簧常数和光热吸收率来预测光热效应的影响。使用这种方法，我们成功地估算了与次要光热效应相关的参数，该参数无法使用先前开发的方法来测量。
Intracavity squeezing is a promising technique that may improve the sensitivity of gravitational wave detectors and cool optomechanical oscillators to the ground state. However, the photothermal effect may modify the occurrence of optomechanical coupling due to the presence of a nonlinear optical crystal in an optical cavity. We propose a novel method to predict the influence of the photothermal effect by measuring the susceptibility of the optomechanical oscillator and identifying the net optical spring constant and photothermal absorption rate. Using this method, we succeeded in precisely estimating parameters related to even minor photothermal effects, which could not be measured using a previously developed method.
