Gravitational wave detectors with broadband high frequency sensitivity
Gravitational wave detectors with broadband high frequency sensitivity
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具有宽带高频灵敏度的引力波探测器
DOI：
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发表时间：
2020
影响因子：
5.5
通讯作者：
Chunnong Zhao
中科院分区：
文献类型：
--
作者：
M. Page;M. Goryachev;H. Miao;Yanbei Chen;Yiqiu Ma;D. Mason;M. Rossi;C. Blair;L. Ju;D. Blair;A. Schliesser;M. Tobar;Chunnong Zhao
从吸气中观察到中子星聚结 GW170817 的引力波，但没有观察到高频并合后核物质运动。光机械白光信号回收已被提议用于实现引力波探测器的宽带灵敏度，但一直依赖于合适的超低损耗机械组件的开发。在这里，我们展示了演示的光机械谐振器，它满足白光信号回收干涉仪的损耗要求，在几kHz时应变灵敏度低于10−24 Hz−1/2。两个谐振器的实验数据与类似于 LIGO 的干涉仪分析模型相结合，以证明与双循环法布里-珀罗·迈克尔逊探测器相比，在更宽频带上的增强。候选谐振器是由声子晶体声学隔离的氮化硅膜和单晶石英声腔。光功率要求有利于薄膜谐振器，而热噪声性能有利于石英谐振器。两者都可以作为现有探测器的附加组件来实现。引力波天文学正在努力提高探测器的灵敏度和带宽，以提供研究更多种类的源和物理过程的可能性。作者提出了利用基于光力学的白光信号回收技术提高激光干涉引力波探测器在 1-5 kHz 频段的灵敏度的解决方案，克服了以前信号回收的局限性。
Gravitational waves from the neutron star coalescence GW170817 were observed from the inspiral, but not the high frequency postmerger nuclear matter motion. Optomechanical white light signal recycling has been proposed for achieving broadband sensitivity in gravitational wave detectors, but has been reliant on development of suitable ultra-low loss mechanical components. Here we show demonstrated optomechanical resonators that meet loss requirements for a white light signal recycling interferometer with strain sensitivity below 10−24 Hz−1/2 at a few kHz. Experimental data for two resonators are combined with analytic models of interferometers similar to LIGO to demonstrate enhancement across a broader band of frequencies versus dual-recycled Fabry-Perot Michelson detectors. Candidate resonators are a silicon nitride membrane acoustically isolated by a phononic crystal, and a single-crystal quartz acoustic cavity. Optical power requirements favour the membrane resonator, while thermal noise performance favours the quartz resonator. Both could be implemented as add-on components to existing detectors. Gravitational wave astronomy is on a path to increase the sensitivity and bandwidth of their detectors to afford the possibility to study a larger variety of sources and physical processes. The authors present solutions to enhance the sensitivity of a laser interferometric gravitational wave detector in the frequency band of 1-5 kHz using optomechanics-based white light signal recycling technologies, overcoming previous limitations of signal recycling.
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影响因子：
5
作者：
D. Martynov;H. Miao;Han Yang;F. Vivanco;E. Thrane;Rory Smith;P. Lasky;W. East;R. Adhikari;A. Bauswein;A. Brooks;Yanbei Chen;T. Corbitt;H. Grote;Y. Levin;Chunnong Zhao;A. Vecchio
通讯作者：
D. Martynov;H. Miao;Han Yang;F. Vivanco;E. Thrane;Rory Smith;P. Lasky;W. East;R. Adhikari;A. Bauswein;A. Brooks;Yanbei Chen;T. Corbitt;H. Grote;Y. Levin;Chunnong Zhao;A. Vecchio
影响因子：
2.1
作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
通讯作者：
Duncan A. Brown;K. Vahi;M. Taufer;Von Welch;E. Deelman;Lorena A. Barba;George K. Thiruvathukal
影响因子：
35
作者：
Aasi, J.;Abadie, J.;Zweizig, J.
通讯作者：
Zweizig, J.
影响因子：
8.6
作者：
Abbott, B. P.;Abbott, R.;Zweizig, J.
通讯作者：
Zweizig, J.
影响因子：
5
作者：
Bentley, Joe;Jones, Philip;Miao, Haixing
通讯作者：
Miao, Haixing