Developing low noise coatings for GW detectors, using next generation techniques such as ECR ion-beam deposition, and plasma-assisted deposition.

使用 ECR 离子束沉积和等离子体辅助沉积等下一代技术，开发用于 GW 探测器的低噪声涂层。

基本信息

批准号：
1785610
负责人：
金额：
--
依托单位：
University of Strathclyde
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2016
资助国家：
英国
起止时间：
2016 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-1785610
关键词：
Developing low noise coatings GW

项目摘要

On 14th September 2015, Advanced LIGO announced the first direct detection of gravitational waves, from two black holes colliding. This announcement was heralded by many people as the "scientific breakthrough of the century", and opens up an entirely new way to observe the Universe. UWS is a full member of the LIGO Scientific Collaboration, and plays a key role within the international community in relation to developing laser mirror technology for future detector upgrades. This project is supported through the STFC (UK) funding within this area of astroparticle research, and will thus be focussed on developing low noise coatings for GW detectors, using next generation techniques such as ECR ion-beam deposition, and plasma-assisted deposition. Thermal noise arising from the mechanical dissipation in the mirror coatings is expected to set an important limit to the sensitivity of all future gravitational wave detectors. UWS has recently demonstrated the ability to fabricate novel amorphous silicon films that exhibit low levels of mechanical and optical losses. This project will focus on the development of multilayer HR coatings using this novel technology, such as silicon/silica and silicon/alumina, and evaluate these for use within upgrades to Advanced LIGO in addition to future observatories such as the Einstein Telescope. Numerous spin-out applications will also be considered, such as ultra-low optical loss infrared filters for environmental monitoring applications.

2015年9月14日，Ligo高级Ligo宣布了两个黑洞碰撞的引力波第一次直接检测。这一宣布被许多人称为“世纪的科学突破”，并为观察宇宙开辟了一种全新的方式。 UWS是LIGO科学合作的正式成员，在国际社会中在开发激光镜技术方面发挥了关键作用，以进行未来的探测器升级。该项目通过STFC（英国）在Astroparticle研究的领域中得到了支持，因此使用下一代技术（例如ECR离子束沉积和等离子辅助的沉积），将重点放在为GW探测器开发低噪声涂层上。镜面涂层中的机械耗散产生的热噪声有望为所有未来引力波检测器的灵敏度设定一个重要的限制。 UWS最近证明了制造新型的无定形硅膜的能力，该薄膜表现出低水平的机械损失和光学损失。该项目将使用这种新型技术（例如硅/二氧化硅和硅/氧化铝）的多层HR涂料的开发，并评估这些技术以在升级到晚期的Ligo外，除了将来的观测站（例如Einstein望远镜）。还将考虑许多纺纱应用，例如用于环境监测应用的超低光损耗红外过滤器。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effect of elevated substrate temperature deposition on the mechanical losses in tantala thin film coatings

高温沉积对氧化钽薄膜涂层机械损失的影响

DOI：
10.1088/1361-6382/aaad7c
发表时间：
2018
期刊：
Classical and Quantum Gravity
影响因子：
3.5
作者：
Vajente, G;Birney, R;Ananyeva, A;Angelova, S;Asselin, R;Baloukas, B;Bassiri, R;Billingsley, G;Fejer, M M;Gibson, D
通讯作者：
Gibson, D

Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A