引力波探测器透射光学系统的辐射热噪声
Radiative Thermal Noise for Transmissive Optics in Gravitational-Wave Detectors
摘要：
传统上，在计算透射光学元件的热噪声时忽略了辐射损失，因为对于最常用的几何形状，与热传导引起的损失相比，辐射损失很小。我们探索使用这样的透射光学元件在非常噪声敏感的环境，如未来的引力波干涉仪的臂腔。这促使我们进入一个辐射损失不再可以忽略的几何状态。在本文中，我们推导出与这种辐射损失相关的热折射噪声，并将其与其他已知的热噪声源进行比较。
英文摘要：
Radiative losses have traditionally been neglected in the calculation of thermal noise of transmissive optical elements because for the most commonly used geometries they are small compared to losses due to thermal conduction. We explore the use of such transmissive optical elements in extremely noise-sensitive environments such as the arm cavities of future gravitational-wave interferometers. This drives us to a geometry regime where radiative losses are no longer negligible. In this paper we derive the thermo-refractive noise associated with such radiative losses and compare it to other known sources of thermal noise.
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