Titania-doped tantala/silica coatings for gravitational-wave detection

Abstract

Reducing thermal noise from optical coatings is crucial to reaching the required sensitivity in next generation interferometric gravitational-waves detectors. Here we show that adding TiO${}_2$ to Ta${}_2$O${}_5$ in Ta${}_2$O${}_5$/SiO${}_2$ coatings reduces the internal friction and in addition present data confirming it reduces thermal noise. We also show that TiO${}_2$-doped Ta${}_2$O${}_5$/SiO${}_2$ coatings are close to satisfying the optical absorption requirements of second generation gravitational-wave detectors.

Cited by in corpus (77)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• Advanced LIGO
• LIGO: The Laser Interferometer Gravitational-Wave Observatory
• Sensitivity Studies for Third-Generation Gravitational Wave Observatories
• GW150914: The Advanced LIGO Detectors in the Era of First Discoveries
• Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo
• The Sensitivity of the Advanced LIGO Detectors at the Beginning of Gravitational Wave Astronomy
• Sensitivity and Performance of the Advanced LIGO Detectors in the Third Observing Run
• Ultra-stable optical clock with two cold-atom ensembles
• Gravitational Radiation Detection with Laser Interferometry
• Quantum Measurement Theory in Gravitational-Wave Detectors
• A Xylophone Configuration for a third Generation Gravitational Wave Detector
• Prospects for doubling the range of Advanced LIGO
• Thermo-optic noise in coated mirrors for high-precision optical measurements
• Amorphous optical coatings of present gravitational-wave interferometers
• Exploring the sensitivity of gravitational wave detectors to neutron star physics
• Advanced LIGO detector performance in the fourth observing run
• The upgrade of GEO600
• Mechanical loss in state-of-the-art amorphous optical coatings
• Brownian Thermal Noise in Multilayer Coated Mirrors
• Improving the Data Quality of Advanced LIGO Based on Early Engineering Run Results
• Measurement of Thermal Noise in Multilayer Coatings with Optimized Layer Thickness
• Multi-Material Coatings with Reduced Thermal Noise
• Measurements of a low temperature mechanical dissipation peak in a single layer of Ta2O5 doped with TiO2
• Thermal noises and noise compensation in high-reflection multilayer coating
• Fluctuation-dissipation theorem for thermo-refractive noise
• Optical Interferometers with Reduced Sensitivity to Thermal Noise
• Observation of a Correlation Between Internal friction and Urbach Energy in Amorphous Oxides Thin Films
• Quantum Limits of Interferometer Topologies for Gravitational Radiation Detection
• Direct Measurement of Coating Thermal Noise in Optical Resonators
• Coherent Cancellation of Photothermal Noise in GaAs/Al${}_{0.92}$Ga${}_{0.08}$As Bragg Mirrors
• Structure and morphology of low mechanical loss TiO${}_2$-doped Ta${}_2$O${}_5$
• Prediction of New Ground State Crystal Structure of Ta2O5
• Audio-band Coating Thermal Noise Measurement for Advanced LIGO with a Multi-mode Optical Resonator
• Excess noise and photo-induced effects in highly reflective crystalline mirror coatings
• Measurements of mechanical thermal noise and energy dissipation in optical dielectric coatings
• Design of a speed meter interferometer proof-of-principle experiment
• Medium range structural order in amorphous tantala spatially resolved with changes to atomic structure by thermal annealing
• Comprehensive study of amorphous metal oxide and Ta${}_2$O${}_5$-based mixed oxide coatings for gravitational-wave detectors
• Optical and mechanical properties of ion-beam-sputtered Nb${}_2$O${}_5$ and TiO${}_2$-Nb${}_2$O${}_5$ thin films for gravitational-wave interferometers
• The next detectors for gravitational wave astronomy
• Exploration of co-sputtered Ta${}_2$O${}_5$-ZrO${}_2$ thin films for gravitational-wave detectors
• Material loss angles from direct measurements of broadband thermal noise
• Mechanical Ringdown Studies of Large-Area Substrate-Transferred GaAs/AlGaAs Crystalline Coatings
• Resonant Dampers for Parametric Instabilities in Gravitational Wave Detectors
• Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors: A review of the state of the art
• Quantum correlation measurements in interferometric gravitational wave detectors
• Multi-color Cavity Metrology
• Technology for the next gravitational wave detectors
• Brownian Thermal Noise in Functional Optical Surfaces
• Optical Levitation of a Mirror for Reaching the Standard Quantum Limit
• Investigation of the Young's modulus and thermal expansion of amorphous titania-doped tantala films
• The 10m AEI prototype facility A brief overview
• Molecular adsorbed layer formation on cooled mirrors and its impacts on cryogenic gravitational wave telescopes
• Ternary Quarter Wavelength Coatings for Gravitational Wave Detector Mirrors: Design Optimization via Exhaustive Search
• Mapping the Optical Absorption of a Substrate-Transferred Crystalline AlGaAs Coating at 1.5um
• Structural and Electronic Properties of Ta2O5 with One Formula Unit
• Optical Absorption Measurement at 1550 nm on a Highly-Reflective Si/SiO${}_2$ Coating Stack
• Prediction of crystallized phases of amorphous Ta${}_2$O${}_5$-based mixed oxide thin films using density functional theory calculations
• Reducing Thermal Noise in Future Gravitational Wave Detectors by employing Khalili Etalons
• Broadband Measurement of Coating Thermal Noise in Rigid Fabry-Perot Cavities
• Optical and mechanical properties of ion-beam-sputtered MgF${}_2$ thin films for gravitational-wave interferometers
• Effects of mixing and annealing on the optical and mechanical properties of TiO${}_2$:Ta${}_2$O${}_5$ amorphous coatings
• Numerically modeling Brownian thermal noise in amorphous and crystalline thin coatings
• Perspectives on Beam-Shaping Optimization for Thermal-Noise Reduction in Advanced Gravitational-Wave Interferometric Detectors: Bounds, Profiles, and Critical Parameters
• A New Class of Optical Beams for Large Baseline Interferometric Gravitational Wave Detectors
• A High-Finesse Suspended Interferometric Sensor for Macroscopic Quantum Mechanics with Femtometre Sensitivity
• Optical Detector Topology for Third-Generation Gravitational Wave Observatories
• Advanced technologies for future ground-based, laser-interferometric gravitational wave detectors
• Folding Gravitational-Wave Interferometers
• Tests of cryogenic Fabry-Perot cavity with mirrors on different substrates
• Deep insights into the local structure of amorphous Ta2O5 thin films by X-ray pair distribution function analysis
• Mechanical loss and stability analysis of NEXCERA in ultra-stable optical cavities
• Thermal Noise Reduction in Ternary Optical Coatings: From Ti::GeO${}_2$-Based Ternary Systems to High Index Materials
• Pass-through Mach-Zehnder topologies for macroscopic quantum measurements
• Trade-off between quantum and thermal fluctuations in mirror coatings yields improved sensitivity of gravitational-wave interferometers
• Birefringence of AlGaAs/GaAs Coatings under Above-Band-Gap Illumination, GR Noise and Photo-Optic Transfer Function