Paper 13093-152
Paper 13093-152
Enhanced far ultra-violet optical properties of physical vapor deposited aluminum mirrors through fluorination
17 June 2024 • 17:30 - 19:00 Japan Standard Time | Room G5, North - 1F
Abstract
Recent developments in performing Physical Vapor Deposition in combination with fluorination by using a XeF2 gas have enabled the production of aluminum (Al) protected with a LiF overcoat with unprecedented reflectance performance in the FUV in addition to improved environmental stability. This coating technology involves a collaboration between the Goddard Space Flight Center and the Brigham Young University. This novel process has produced Al mirrors with FUV a state-of-the-art reflectivity of around 91% at 121.6 nm. In this paper, we report on environmental/material property characterization of these XeF2 fluorinated samples. This is done in order to advance the TRL for these Al+LiF mirror coatings.
Presenter
NASA Goddard Space Flight Ctr. (United States)
\Manuel attended the University of Puerto Rico, where obtained a B.S. degree in 1984, and a M.S. degree in 1987. He received his Ph.D. in Solid State Physics from the University of Florida in 1994. Before coming to work at the NASA/Goddard Space Flight Center, he spent 3 years as a Postdoctoral Research Associate at the University of Maryland in College Park, MD. Since then, he has been employed in the Optics Branch at GSFC doing characterization of the optical constants of materials at cryogenic temperatures in the ultraviolet//visible/infrared spectral ranges. He is also involved in the characterization and calibration of optical components for various earth- and space-based missions such as RST, JWST, HST, GOES, OCI and LaserComm among others. He has also led and supported various research and development activities related to optical coatings for wide spectral coverage (from far-UV to infrared) for future programs such as LUVOIR and HabEx mission concepts.