149 citations · 399 across the 13 of their papers we have counts for
13 papers
Intrinsic Defects in Amorphous Optical Coatings of TiO-doped GeO for Gravitational-wave Detectors
K. Prasai, K. Lee, R. Bassiri +6
The increased laser power of future gravitational-wave detectors will require mirror coatings with optical absorption below 0.1 ppm per mirror. TiO-doped GeO, currently the…
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…
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…
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…
Low mechanical loss TiO:GeO coatings for reduced thermal noise in Gravitational Wave Interferometers
Gabriele Vajente, Le Yang, Aaron Davenport +11
The sensitivity of current and planned gravitational wave interferometric detectors is limited, in the most critical frequency region around 100 Hz, by a combination of quantum noi…
Exploration of co-sputtered TaO-ZrO thin films for gravitational-wave detectors
M. Abernathy, A. Amato, A. Ananyeva +45
We report on the development and extensive characterization of co-sputtered tantala-zirconia thin films, with the goal to decrease coating Brownian noise in present and future grav…