Cryogenic Interferometry and Suspension Development for Future Gravitational Wave Detectors.

未来引力波探测器的低温干涉测量和悬架开发。

• 批准号: 2887811
• 金额: --
• 依托单位: University of Glasgow
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2887811
• 关键词: Cryogenic; Interferometry; Suspension; Development; Future

Future gravitational wave detectors such as the Einstein Telescope will use cryogenic cooling of the suspended test-mass mirrors to reduce the impact of thermal noise of the detector sensitivity. A methodology that combines cryogenic materials studies, monolithic suspensions assembly, cryogenic cooling, and seismic isolation is needed to prove the viability of this critical technology for future detectors. Meaning this research is extremely timely, novel, and will have a strong impact on the research field and the final design of the Einstein Telescope. In this work the thermal and mechanical properties of cryogenic silicon and sapphire fibres will be investigated as candidate materials for the Glasgow prototype interferometer using cryogenically cooled monolithic suspended optics. This would be the first demonstration of a monolithical suspended and cryogenically cooled laser interferometer, a key technology demonstration needed for future gravitational wave detectors. The project will develop experimental techniques for characterisation of thermal conductivity, mechanical strength and loss, adapting experiments to low cryogenic temperatures, and performing new characterisation of samples produced with novel fabrication and bonding techniques.

未来的引力波探测器，如爱因斯坦望远镜，将使用悬置的测试质量镜的低温冷却，以减少热噪声对探测器灵敏度的影响。一种方法，结合低温材料的研究，单片悬浮组装，低温冷却，和地震隔离是必要的，以证明这种关键技术的可行性，为未来的探测器。意味着这项研究非常及时、新颖，将对爱因斯坦望远镜的研究领域和最终设计产生强烈影响。在这项工作中，低温硅和蓝宝石光纤的热性能和机械性能将被调查的候选材料的格拉斯哥原型干涉仪使用低温冷却单片悬挂光学。这将是单片悬浮和低温冷却激光干涉仪的首次演示，这是未来引力波探测器所需的关键技术演示。该项目将开发用于表征热导率、机械强度和损耗的实验技术，使实验适应低温，并对采用新型制造和粘合技术生产的样品进行新的表征。