Development of New Diagnostic Techniques for Preliminary and in Situ Characterization of Advanced LIGO Optical Components

开发先进 LIGO 光学元件初步和原位表征的新诊断技术

• 批准号: 0140110
• 负责人: David Reitze
• 金额: $ 32.19万
• 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: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0140110&HistoricalAwards=false
• 关键词: Development; New; Diagnostic; Techniques; Preliminary

A research program carried out by scientists at the University of Florida and the Institute in collaboration with the Institute of Applied Physics of the Russian Academy of Sciences to investigate how high power laser beams can distort precision optical components in gravitational wave detectors through absorption and heating. Methods will be developed for remotely measuring optical path distortions on the order of one billionth of a meter. In addition, novel methods for isolating back-propagating high power laser beams will be developed to prevent interactions with sensitive, phase-stabilized lasers. This research will play a major role in facilitating the operation of ground-based gravitational wave detectors such as the Laser Interferometer Gravitational Wave Observatory (LIGO). The detection of gravitational waves by large-scale high power laser-based interferometers will open a new window on the universe through the detection of cataclysmic astrophysical phenomena such as black hole-neutron star collisions. To enhance the sensitivity of future interferometers, highly sensitive measurement techniques such as those developed here are crucial for sensing the operational state of these interferometers, the most sensitive instruments ever constructed.

由佛罗里达大学和研究所的科学家与俄罗斯科学院应用物理研究所合作开展的一项研究计划，旨在调查高功率激光束如何通过吸收和加热使引力波探测器中的精密光学元件变形。 将制定方法，用于遥测十亿分之一米量级的光程畸变。 此外，将开发隔离反向传播高功率激光束的新方法，以防止与敏感的相位稳定激光器相互作用。 这项研究将在促进地面引力波探测器的运作方面发挥重要作用，如激光干涉引力波天文台（LIGO）。 利用大规模高功率激光干涉仪探测引力波，将通过对黑洞-中子星星碰撞等灾难性天体物理现象的探测，打开了解宇宙的新窗口。 为了提高未来干涉仪的灵敏度，高灵敏度的测量技术，如在这里开发的那些是至关重要的，用于感测这些干涉仪的操作状态，最敏感的仪器有史以来建造。