149 citations · 399 across the 13 of their papers we have counts for
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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…
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…
Amorphous to Amorphous Insulator-Metal transition in GeSe:Ag glasses
Kiran Prasai, Gang Chen, David Drabold
We study an insulator-metal transition in a ternary chalcogenide glass (GeSe)Ag for =0.15 and 0.25. The conducting phase of the glass is obtained by using "Gap S…
Sculpting the band gap: a computational approach
Kiran Prasai, Parthapratim Biswas, D. A. Drabold
Materials with optimized band gap are needed in many specialized applications. In this work, we demonstrate that Hellmann-Feynman forces associated with the gap states can be used…