Building blocks for future detectors: Silicon test masses and 1550 nm laser light
Building blocks for future detectors: Silicon test masses and 1550 nm laser light
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未来探测器的构建模块：硅测试质量和 1550 nm 激光
DOI：
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发表时间：
2009
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通讯作者：
B. Willke
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作者：
R. Schnabel;M. Britzger;F. Bruckner;O. Burmeister;K. Danzmann;J. Duck;T. Eberle;D. Friedrich;H. Luck;M. Mehmet;R. Nawrodt;S. Steinlechner;B. Willke
目前的干涉引力波探测器采用准单色、1064 nm连续激光和室温熔融石英测试质量的组合。第三代探测器，如爱因斯坦望远镜，将涉及相当大的灵敏度提高。1550 nm激光辐射与晶体硅低温测试质量的结合可能是实现灵敏度目标的重要组成部分。本文比较了熔融二氧化硅和硅测试质量材料在未来探测器中与降低热噪声有关的一些特性，以及最近在制备1064 nm和1550 nm激光辐射方面与降低量子噪声有关的技术成果。我们得出结论，硅测试质量和1550纳米激光有可能成为未来引力波探测的基石。
Current interferometric gravitational wave detectors use the combination of quasi-monochromatic, continuous-wave laser light at 1064 nm and fused silica test masses at room temperature. Detectors of the third generation, such as the Einstein-Telescope, will involve a considerable sensitivity increase. The combination of 1550 nm laser radiation and crystalline silicon test masses at low temperatures might be important ingredients in order to achieve the sensitivity goal. Here we compare some properties of the fused silica and silicon test mass materials relevant for decreasing the thermal noise in future detectors as well as the recent technology achievements in the preparation of laser radiation at 1064 nm and 1550 nm relevant for decreasing the quantum noise. We conclude that silicon test masses and 1550 nm laser light have the potential to form the future building blocks of gravitational wave detection.