Detection of Gravitational Waves: Advanced Research and Development for LIGO

引力波探测：LIGO 的高级研究与开发

• 批准号: 0070854
• 负责人: Guenakh Mitselmakher
• 金额: $ 133.5万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-08-01 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0070854&HistoricalAwards=false
• 关键词: Detection; Gravitational; Waves; Advanced; Research

This group will conduct a multi-faceted program of advanced research and development for the Laser Interferometer Gravitational-Wave Observatory (LIGO). The program will concentrate on four main areas related to the development of improvements to the LIGO detection system and to the analysis of LIGO data.First, the group will determine control strategies and assess problems associated with suspended interferometers for the next LIGO upgrade through the study of a suspended signal-recycled interferometer. Second, they will asses the effects of high laser power, in excess of 100 W, on critical optical components (such as modulators, Faraday isolators, and other transmissive optics). Strategies will be developed for minimizing exposure levels to optical elements that cannot tolerate high powers. Third, the group will develop data analysis methods based on wavelet transforms for transient signal detection, continue to develop components for the LIGO end-to-end model, and undertake a critical study of noise characterization. Fourth, they will explore white light cavities as a way of reaching broadband quantum limited sensitivity for future generations of gravitational wave detectors. In the course of this research, the University of Florida LIGO group will collaborate with the LIGO Laboratory, Glasgow University, Stanford University, and the Australian National University.

该小组将为激光干涉引力波天文台（LIGO）进行多方面的高级研究和开发计划。 该计划将集中在与LIGO探测系统改进和LIGO数据分析相关的四个主要领域。首先，该小组将通过对悬挂信号回收干涉仪的研究，确定控制策略并评估与悬挂干涉仪相关的问题，以便下一次LIGO升级。其次，他们将评估超过100 W的高激光功率对关键光学元件（如调制器、法拉第隔离器和其他透射光学器件）的影响。 将制定战略，以尽量减少暴露水平的光学元件，不能容忍高功率。第三，该小组将开发基于小波变换的瞬态信号检测数据分析方法，继续开发LIGO端到端模型的组件，并对噪声特性进行关键性研究。第四，他们将探索白色光腔，作为未来几代引力波探测器达到宽带量子极限灵敏度的一种方式。在这项研究的过程中，佛罗里达大学LIGO小组将与LIGO实验室、格拉斯哥大学、斯坦福大学和澳大利亚国立大学合作。