Thermal noises and noise compensation in high-reflection multilayer coating

Abstract

Thermal fluctuations of different origin in the substrate and in the coating of optical mirrors produce phase noise in the reflected wave. This noise determines the ultimate stabilization capability of high-Q cavities used as a reference system. In particular this noise is significant in interferometric laser gravitational wave antennas. It is shown that simple alteration of a mirror multilayer coating may provide suppression of phase noise produced by thermorefractive, thermoelastic, photothermal and thermoradiation induced fluctuations in the coating.

10 pages, 5 figures

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• A high stability semiconductor laser system for a ${}^{88}$Sr-based optical lattice clock
• Reducing the effect of thermal noise in optical cavities
• Fundamental thermal noise limits for optical microcavities
• Photothermal and thermo-refractive effects in high reflectivity mirrors at room and cryogenic temperature
• Thermal intermodulation noise in cavity-based measurements
• Effect of interference on thermal noise and coating optimization in dielectric mirrors
• Technology for the next gravitational wave detectors
• Mirror thermal noise in laser interferometer gravitational wave detectors operating at room and cryogenic temperature
• Calculation of thermal noise in grating reflectors
• Reducing Thermal Noise in Future Gravitational Wave Detectors by employing Khalili Etalons
• Towards observing the neutron star collapse with gravitational wave detectors
• Thermorefringent noise in crystalline optical materials
• Ultra-stable transportable ultraviolet clock laser using cancellation between photo-thermal and photo-birefringence noise
• Optical Detector Topology for Third-Generation Gravitational Wave Observatories
• Spontaneous crystallization noise in mirrors of gravitational wave detectors
• Pass-through Mach-Zehnder topologies for macroscopic quantum measurements
• New design of gravitational wave detectors