Results 1 to 10 of about 10,576 (96)

Correlation between birefringence and absorption mapping in large-size Sapphire substrates for gravitational-wave interferometry [PDF]

Scientific Reports, 2023
In high-sensitive laser interferometers, such as the gravitational-wave detector KAGRA, ultra-high-quality mirrors are essential. In the case of KAGRA, where cavity mirrors are cooled down to 20 K, large-size Sapphire crystals are used as the substrate ...
Simon Zeidler, Marc Eisenmann, Marco Bazzan, Pengbo Li, Matteo Leonardi   +4 more
doaj   +2 more sources

Core Payload of the Space Gravitational Wave Observatory: Inertial Sensor and Its Critical Technologies [PDF]

Sensors
Since Einstein’s prediction regarding the existence of gravitational waves was directly verified by the ground-based detector Advanced LIGO, research on gravitational wave detection has garnered increasing attention.
Shaoxin Wang, Dongxu Liu, Xuan Zhan, Peng Dong, Jia Shen, Juan Wang, Ruihong Gao, Weichuan Guo, Peng Xu, Keqi Qi, Ziren Luo   +10 more
doaj   +2 more sources

Testing general relativity with gravitational-wave catalogs: The insidious nature of waveform systematics [PDF]

iScience, 2021
Summary: Gravitational-wave observations of binary black holes allow new tests of general relativity (GR) to be performed on strong, dynamical gravitational fields.
Christopher J. Moore, Eliot Finch, Riccardo Buscicchio, Davide Gerosa   +3 more
doaj   +2 more sources

Design method for the structure of a gravitational wave detection telescope with low TTL noise [PDF]

Scientific Reports
As a critical payload of the gravitational wave detection interferometry system, the tilt-to-length (TTL) noise has a significant influence on the detection accuracy of the interferometry system.
Sijun Fang, Wentong Fan, Rui Zhang, Jian Luo, Bohong Li, Hongwen Hai, Yehao Cao, Lei Fan, Yong Yan   +8 more
doaj   +2 more sources

Multi-Physics and Multi-Objective Optimization for Fixing Cubic Fabry–Pérot Cavities Based on Data Learning

Applied Sciences, 2023
The Fabry–Pérot (FP) cavity is the essential component of an ultra-stable laser (USL) for gravitational wave detection, which couples multiple physics fields (optical/thermal/mechanical) and requires ultra-high precision.
Hang Zhao, Fanchao Meng, Zhongge Wang, Xiongfei Yin, Lingqiang Meng, Jianjun Jia   +5 more
doaj   +1 more source

Study on the Effect of Micro-Force Perturbations and Temperature Fluctuation on Interferometer for the Taiji Program

Sensors, 2023
To increase the interferometric measurement resolution in the Taiji program, we present a noise suppression method in this paper. Taking the specific micro-force perturbation and temperature fluctuation in the Taiji-1 interferometer as an example, we set
Juan Wang, He-Shan Liu, Chao Yang, Ke-Qi Qi, Zi-Ren Luo, Ran Yang   +5 more
doaj   +1 more source

A Spaceborne Mounting Method for Fixing a Cubic Fabry–Pérot Cavity in Ultra-Stable Lasers

Applied Sciences, 2022
A spaceborne mounting method for fixing a 100 × 100 × 100 mm cubic Fabry–Pérot (FP) cavity is presented. The method constrains the FP cavity in eight directions with a titanium bracket, PEEK gaskets, and vacuum glue.
Pengyang Zhao, Jiuchang Deng, Chengwen Xing, Fanchao Meng, Lingqiang Meng, Yong Xie, Long Chen, Tao Liu, Wei Bian, Xiongfei Yin, Hongxing Qi, Jianjun Jia, Shougang Zhang, Jianyu Wang   +13 more
doaj   +1 more source

Squeezing for cosmic symphony

AAPPS Bulletin, 2023
We briefly review the status of applying quantum squeezing to aid the search for gravitational waves with km-scale laser interferometers operating in the audio frequency band.
Mengyao Wang, Fan Zhang
doaj   +1 more source

Using DWS Optical Readout to Improve the Sensitivity of Torsion Pendulum

Sensors, 2023
In space gravitational wave detection missions, a drag-free system is used to keep the test mass (TM) free-falling in an ultralow-noise environment.
Shaoxin Wang, Heshan Liu, Lei Dai, Ziren Luo, Peng Xu, Pan Li, Ruihong Gao, Dayu Li, Keqi Qi   +8 more
doaj   +1 more source

Probing supermassive black hole binaries with orbital resonances of laser-ranged satellites

European Physical Journal C: Particles and Fields, 2023
Coalescing supermassive black hole binaries (SMBHBs) are the primary source candidates for low frequency gravitational wave (GW) detections, which could bring us deep insights into galaxy evolutions over cosmic time and violent processes of spacetime ...
Minghui Du, Qiong Deng, Yifan Bian, Ziren Luo, Peng Xu   +4 more
doaj   +1 more source