Compact Optomechanical Seismic Sensors

紧凑型光机械地震传感器

• 批准号: 2045579
• 负责人: Felipe Guzman
• 金额: $ 23.09万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-18 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2045579&HistoricalAwards=false
• 关键词: Compact; Optomechanical; Seismic; Sensors

This award supports research in gravitational wave detector instrumentation and it addresses the priority areas of NSF's "Windows on the Universe" Big Idea. This award sponsors the development of novel compact seismic sensing technologies that provide highly sensitive observations of slow seismic phenomena on platforms under extreme conditions such as low pressures (vacuum) and low temperatures (cryogenics). In this project, parameters of sensitivity and bandwidth will be studied to develop optomechanical seismic sensors that are compatible with and can be installed in future gravitational wave observatories, such as LIGO Voyager. Seismic sensors are used to measure external disturbances acting on the platforms and provide signals than can be used to stabilize them. Moreover, the research conducted in this project will advance the development of technologies that enable further advancements relevant to other scientific and technological areas such as seismology, geodesy, precision measurements of vibrations, generally inertial sensing and inertial navigation, where highly compact form factors and high sensitivities can be advantageous. This award will support the participation of this research group in activities of the international LIGO Scientific Collaboration and the gravitational wave community at large; also providing for students to be trained in precision measurements and STEM areas, and helping to educate the local community in the new area of gravitational wave astronomy.This project aims to develop highly compact monolithic optomechanical seismic sensors for ground-based gravitational wave observatories, such as LIGO, as an alternative to current solutions. LIGO currently uses commercial seismometers that are not readily compatible with vacuum or low temperature environments and are physically large - approximately 15 kg and 30 liters. Inertial sensors capable of operating in these conditions are required for future gravitational wave detectors, such as LIGO Voyager, and need to be developed, which is the goal of this project. In addition, the research plan envisions the development of an optomechanical seismic sensing instrument that will serve as a test platform to assess relevant sensor parameters to guide the technology development and help study their performance at low frequencies - from 10 mHz to slightly above 10 Hz. These results will outline the path for the development of cryogenic- and vacuum-compatible optomechanical seismic sensors for future generation gravitational wave observatories and will be relevant to many other STEM areas.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项支持引力波探测器仪器的研究，并解决了NSF“宇宙之窗”大创意的优先领域。该奖项赞助开发新型紧凑型地震传感技术，在极端条件下（如低压（真空）和低温（低温））提供对平台上缓慢地震现象的高灵敏度观测。在该项目中，将研究灵敏度和带宽参数，以开发与LIGO Voyager等未来引力波观测站兼容并可安装的光机地震传感器。地震传感器用于测量作用在平台上的外部干扰，并提供可用于稳定平台的信号。此外，在该项目中进行的研究将促进技术的发展，从而能够进一步推动与其他科学和技术领域相关的进步，例如地震学，大地测量学，振动的精确测量，一般惯性传感和惯性导航，高度紧凑的形状因素和高灵敏度可能是有利的。该奖项将支持该研究小组参与国际LIGO科学合作组织和整个引力波社区的活动;还为学生提供精密测量和STEM领域的培训，并帮助教育当地社区在引力波天文学的新领域。该项目旨在开发高度紧凑的单片光机械地震传感器，用于地面，基于引力波观测站，如LIGO，作为当前解决方案的替代方案。LIGO目前使用的商业地震仪不容易与真空或低温环境兼容，并且物理上很大-大约15公斤和30升。能够在这些条件下工作的惯性传感器是未来的引力波探测器，如LIGO Voyager所需要的，需要开发，这是该项目的目标。此外，该研究计划设想开发一种光学机械地震传感仪器，该仪器将作为测试平台，评估相关传感器参数，以指导技术开发并帮助研究其在低频（从10 mHz到略高于10 Hz）下的性能。这些成果将为下一代引力波观测站开发低温和真空兼容的光机地震传感器指明道路，并将与许多其他STEM领域相关。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Optomechanical Accelerometers for Geodesy

• DOI: 10.3390/rs14174389
• 发表时间: 2022-09-01
• 期刊: REMOTE SENSING
• 影响因子: 5
• 作者: Hines, Adam;Nelson, Andrea;Guzman, Felipe
• 通讯作者: Guzman, Felipe

Fiber-based two-wavelength heterodyne laser interferometer

• DOI: 10.1364/oe.466332
• 发表时间: 2022-10-10
• 期刊: OPTICS EXPRESS
• 影响因子: 3.8
• 作者: Zhang, Yanqi;Guzman, Felipe
• 通讯作者: Guzman, Felipe

Quasi-monolithic heterodyne laser interferometer for inertial sensing

• DOI: 10.1364/ol.473476
• 发表时间: 2022-10-01
• 期刊: OPTICS LETTERS
• 影响因子: 3.6
• 作者: Zhang, Yanqi;Guzman, Felipe
• 通讯作者: Guzman, Felipe