NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Ion beam deposited silicon carbide on glass optics and replica gratingsThe results of an attempt to coat optical flats and replace echelle gratings with ion-deposited SiC are reported. Deposition was performed by bombarding a SiC target with an ion beam angled 45 deg relative to the target. Half the target was covered with stainless steel to furnish a comparison opportunity. After precleaning SiC coatings of 300-2200 A thickness were deposited. The specimens had previously been coated with either Au or Al or were left blank. Reflectance and diffraction data were taken of the finished flats and gratings. The SiC-coated flats performed as well as uncoated flats while the echelles exhibited deteriorating performance with increasing coating thickness. Further studies are indicated on the effect of coating thickness on surface roughness.
Document ID
19840066118
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Windt, D. L.
(Colorado, University Boulder, CO, United States)
Bach, B.
(Hyperfine, Inc. Boulder, CO, United States)
Date Acquired
August 12, 2013
Publication Date
September 15, 1984
Publication Information
Publication: Applied Optics
Volume: 23
ISSN: 0003-6935
Subject Category
Optics
Accession Number
84A48905
Funding Number(s)
CONTRACT_GRANT: NSG-5303
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available