3 papers
cond-mat.mtrl-sci2026
Network Topology of Hafnia-Based Amorphous Optical Coatings by Grazing-Incidence X-ray Total Scattering and Atomic Modeling
K. Prasai, B. LaBell, K. H. Lee +4
Amorphous hafnia-based films are promising optical-coating materials for cryogenic GW detectors, but their performance depends on how doping and annealing modify the atomic network…
cond-mat.mtrl-sci2026
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…
cond-mat.mtrl-sci2025
Machine Learning Assisted Modeling of Amorphous TiO-Doped GeO for Advanced LIGO Mirror Coatings
Jun Jiang, Rui Zhang, Kiran Prasai +4
The mechanical loss angle of amorphous TiO-doped GeO can be lower than 10, making it a candidate for Laser Interferometer Gravitational-wave Observatory (LIGO) mirro…