Durable Silver Mirror Coating Via Ion Assisted, Electron Beam Evaporation For Large Aperture Optics, Phase I

Metadata Updated: May 2, 2019

Highly reflective optical coatings with low scatter properties are needed to image very faint objects such as extra-solar planets. Silver has the highest reflectivity of all metals but tarnishes readily upon exposure to atmospheric pollutants. In this research, Surface Optics Corporation (SOC) will develop a non-tarnishing silver mirror coating based an ion assisted, thermal evaporation process. The recipe for this durable silver mirror system was patented by Lawrence Livermore National Laboratory (LLNL) and is based on an alternative deposition method, namely, reactive sputtering. Developing a methodology to manufacture protected silver by ion assisted evaporation will allow these proven designs to be fabricated with SOC?s large aperture coating facility. SOC recently developed and implemented a unique vacuum coating system that utilizes a computer controlled, translating evaporation source. This system is capable of producing highly uniform optical films with low scatter properties, on curved substrates up to 3-meters in diameter. The combination of SOC's novel coating methods and LLNL's novel coating designs, will establish a unique and very valuable coating resource for the astronomical community.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_4965
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
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Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190501230127
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Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2004-07-01
Homepage URL https://techport.nasa.gov/view/4965
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash aa08d53df373471ca49dd64387e94fc0d5fb964e
Source Schema Version 1.1

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