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Atomic Structure of Amorphous Optical Coatings of TiO-doped GeO by Grazing-Incidence Total X-ray Scattering Measurements
K. Prasai, J. Jiang, K. Lee +13
Reducing coating thermal noise in future gravitational-wave detectors requires identifying the atomic motifs that control mechanical loss in amorphous optical coatings. We combine…
Comprehensive study of amorphous metal oxide and TaO-based mixed oxide coatings for gravitational-wave detectors
Mariana A. Fazio, Gabriele Vajente, Le Yang +2
High finesse optical cavities of current interferometric gravitational-wave detectors are significantly limited in sensitivity by laser quantum noise and coating thermal noise. The…
Enhanced Medium Range Order in Vapor Deposited Germania Glasses at Elevated Temperatures
Le Yang, Gabriele Vajente, Mariana Fazio +9
Glasses are nonequilibrium solids with properties highly dependent on their method of preparation. In vapor-deposited molecular glasses, structural organization could be readily tu…
Structural evolution of binary oxide nanolaminates with annealing and its impact on room-temperature internal friction
Le Yang, Mariana Fazio, Gabriele Vajente +6
Internal friction in oxide thin films imposes a critical limitation to the sensitivity and stability of ultra-high finesse optical cavities for gravitational wave detectors. Strate…
A method for the experimental measurement of bulk and shear loss angles in amorphous thin films
Gabriele Vajente, Mariana Fazio, Le Yang +4
Brownian thermal noise is a limiting factor for the sensitivity of many high precision metrology applications, among other gravitational-wave detectors. The origin of Brownian nois…
Probing microplasticity in small scale FCC crystals via Dynamic Mechanical Analysis
Xiaoyue Ni, Stefanos Papanikolaou, Gabriele Vajente +2
In small-scale metallic systems, collective dislocation activity has been correlated with size effects in strength and with a step-like plastic response under uniaxial compression…