Abstract

In this work we study the thermal noise of two monolithically suspended mirrors in a tabletop high-finesse optical cavity. We show that, given suitable seismic filters, such a cavity can be designed to be sensitive to quantum radiation pressure fluctuations in the audio band of gravitational wave interferometric detectors below 1 kHz. Indeed, the thermal noise of the suspensions and of the coatings constitutes the main limit to the observation of quantum radiation pressure fluctuations. This limit can be overcome with an adequate choice of mirror suspension and coating parameters. Finally, we propose to combine two optical cavities, like those modeled in this work, to obtain a tabletop quantum radiation pressure-limited interferometer.

Graphical abstract

中文翻译：

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熔融石英镜悬架的辐射压力噪声受限光学腔的热噪声研究

摘要

在这项工作中，我们研究了台式高精细光学腔中两个单片悬挂反射镜的热噪声。我们表明，给定合适的地震滤波器，可以将这种腔设计成对重力波干涉式探测器低于1 kHz的音频带中的量子辐射压力波动敏感。实际上，悬浮液和涂层的热噪声构成了观察量子辐射压力波动的主要限制。此限制可与镜悬挂和涂层参数的适当选择来克服。最后，我们建议将两个光学腔（如在本工作中建模的腔）组合起来，以获得台式量子辐射压力限制干涉仪。

图形概要