论文标题
晶体涂层中电噪声朝向未来引力波检测器的研究
Study on electro-optic noise in crystalline coatings toward future gravitational wave detectors
论文作者
论文摘要
高反射性镜面涂层中的热噪声是地面重力波检测器中的限制因素。减少这种涂层热噪声可提高探测器的灵敏度，并丰富观察跑步的科学结果。砷化甲状腺素和铝合金合金的砷化铝（称为藻类）涂层是有希望的涂层候选物，用于将来的重力波检测器升级，因为它们的涂层均低涂层。但是，基于藻类的结晶涂层可能会易受电场波动引起的电噪声的影响。我们通过使用Fabry-Perrot腔研究了藻类涂层中的电磁效应，并得出结论，噪声水平远低于电流和计划的重力波检测器的灵敏度。
Thermal noise in high-reflectivity mirror coatings is a limiting factor in ground-based gravitational wave detectors. Reducing this coating thermal noise improves the sensitivity of detectors and enriches the scientific outcome of observing runs. Crystalline gallium arsenide and aluminum-alloyed gallium arsenide (referred to as AlGaAs) coatings are promising coating candidates for future upgrades of gravitational wave detectors because of their low coating thermal noise. However, AlGaAs-based crystalline coatings may be susceptible to an electro-optic noise induced by fluctuations in an electric field. We investigated the electro-optic effect in an AlGaAs coating by using a Fabry-Perot cavity, and concluded that the noise level is well below the sensitivity of current and planned gravitational-wave detectors.
