Zobrazeno 1 - 10
of 41
pro vyhledávání: '"James D. Barrie"'
Autor:
Kelsey A. Folgner, Samuel L. Dunscombe, Nicolas B. Liang, Chung-Tse Chu, Diana R. Alaan, Christopher J. Panetta, James D. Barrie
Publikováno v:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation V.
Autor:
Kelsey A. Folgner, Katherine J. Nelms, Chung-Tse Chu, Diana R. Alaan, Christopher J. Panetta, James D. Barrie
Publikováno v:
Applied Optics. 62:B222
The long-term environmental durability of protected silver mirror coatings is influenced by numerous factors. Here, accelerated environmental exposure testing of model silver mirror coatings illuminated the effects of stress, defects, and layer compo
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
Coating spit defects were introduced into ZnS/Ge coatings during a physical vapor deposition process. Microstructural characterization techniques revealed the effects of defect location within the multilayer stack on the resultant structural morpholo
Autor:
Frank Pan, Sean C. Stuart, Adam G. Vore, Sara Lampen, John A. Hackwell, Peter D. Fuqua, James D. Barrie
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
A novel hyperspectral imager design required a slit mask with bi-directional reflectance suppression between 600nm to 1650nm. A dark mirror coating was fabricated and patterned on a commercial off the shelf (COTS) edge filter.
Autor:
Kelsey A. Folgner, Katherine J. Nelms, Chung-Tse Chu, Diana R. Alaan, Christopher J. Panetta, James D. Barrie
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
Silver mirror durability was evaluated by accelerated testing to elucidate the effects of stress and defects on the extent and mechanisms of corrosion. Coating defects significantly affected the corrosion behavior of the mirrors.
Autor:
Chelsea D. Appleget, Kelsey A. Folgner, Forrest Wissuchek, Samuel L. Dunscombe, Paul M. Adams, Scott D. Sitzman, Zachary R. Lingley, James D. Barrie
Publikováno v:
Optical Interference Coatings Conference (OIC) 2022.
Varying compositions of aluminum-silver alloy films were synthesized to mitigate grain growth effects with increasing film thickness. Tailoring the microstructure by introducing a hcp Ag2Al phase significantly improved optical scatter and reflectance
Publikováno v:
Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III.
The optical community frequently relies on optical adhesives to join multi-component optical assemblies. However, options for bonding infrared materials are limited, since most optical adhesives are organic which means poor index matching to high ind
Publikováno v:
Optical Interference Coatings Conference (OIC) 2019.
The stability of protected silver mirror coatings was studied by both long-exposure and a mixed-flowing-gas test with a goal of establishing accelerated testing parameters for Ag mirrors that are operated or stored in ambient conditions.
Publikováno v:
Optical Interference Coatings Conference (OIC) 2019.
Protected silver mirrors were subjected to accelerated environmental exposure testing to investigate the effects of layer composition on the development and growth of corrosion features along particular layer interfaces.
Publikováno v:
Applied Optics. 59:A219
The stability of two types of protected silver mirrors was studied by long-term exposure in a clean-room laboratory and mixed-flowing-gas (MFG) accelerated environmental test with two different gas concentrations. The two types of mirrors behaved ver