Review of the advanced LIGO gravitational wave observatories leading to observing run four

C Cahillane, G Mansell - Galaxies, 2022 - mdpi.com
Gravitational waves from binary black hole and neutron star mergers are being regularly
detected. As of 2021, 90 confident gravitational wave detections have been made by the …

Progress in the measurement and reduction of thermal noise in optical coatings for gravitational-wave detectors

M Granata, A Amato, G Cagnoli, M Coulon… - Applied …, 2020 - opg.optica.org
Coating thermal noise is a fundamental limit for precision experiments based on optical and
quantum transducers. In this review, after a brief overview of the techniques for coating …

Excess noise and photoinduced effects in highly reflective crystalline mirror coatings

J Yu, S Häfner, T Legero, S Herbers, D Nicolodi, CY Ma… - Physical Review X, 2023 - APS
Thermodynamically induced length fluctuations of high-reflectivity mirror coatings put a
fundamental limit on sensitivity and stability of precision optical interferometers like …

Exploring the sensitivity of gravitational wave detectors to neutron star physics

D Martynov, H Miao, H Yang, FH Vivanco, E Thrane… - Physical Review D, 2019 - APS
The physics of neutron stars can be studied with gravitational waves emitted from coalescing
binary systems. Tidal effects become significant during the last few orbits and can be visible …

Prospects for detecting gravitational waves at 5 Hz with ground-based detectors

H Yu, D Martynov, S Vitale, M Evans, D Shoemaker… - Physical review …, 2018 - APS
We propose an upgrade to Advanced LIGO (aLIGO), named LIGO-LF, that focuses on
improving the sensitivity in the 5–30 Hz low-frequency band, and we explore the upgrade's …

Large and extremely low loss: the unique challenges of gravitational wave mirrors

J Degallaix, C Michel, B Sassolas, A Allocca, G Cagnoli… - JOSA A, 2019 - opg.optica.org
This paper describes the making of large mirrors for laser interferometer gravitational wave
detectors. These optics, working in the near infrared, are among the best optics ever created …

Quantum-enhanced interferometry for axion searches

D Martynov, H Miao - Physical Review D, 2020 - APS
We propose an experiment to search for axions and axionlike particles in the galactic halo
using quantum-enhanced interferometry. This proposal is related to the previously reported …

Structure and morphology of low mechanical loss TiO2-doped Ta2O5

MA Fazio, G Vajente, A Ananyeva… - Optical Materials …, 2020 - opg.optica.org
The exceptional stability required from high finesse optical cavities and high precision
interferometers is fundamentally limited by Brownian motion noise in the interference …

Direct measurement of coating thermal noise in optical resonators

S Gras, M Evans - Physical Review D, 2018 - APS
The best measurements of space and time currently possible (eg, gravitational-wave
detectors and optical reference cavities) rely on optical resonators, and are ultimately limited …

Optical and mechanical properties of ion-beam-sputtered and thin films for gravitational-wave interferometers and an improved measurement of …

A Amato, G Cagnoli, M Granata, B Sassolas… - Physical Review D, 2021 - APS
Brownian thermal noise associated with highly reflective mirror coatings is a fundamental
limit for several precision experiments, including gravitational-wave detectors. Recently …