SEDL / STP / STP954-EB / STP23121S

Tomorrows Coatings Today — They Need Help

Stewart, AF
Air Force Weapons Laboratory, Kirtland AFB, NM

Guenther, AH
Air Force Weapons Laboratory, Kirtland AFB, NM

Pages: 18    Published: Jan 1986

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Abstract

A representative set of dielectric coatings prepared using novel deposition techniques have been evaluated. Single layer coatings of ZrO² and Al²O³ were deposited on super polished fused silica substrates by conventional electron beam, electron beam in UHV, electron beam with ion beam assist, CW laser in UHV, and an advanced epitaxial technique. Characterization included total integrated scatter, spectrophotometry, x-ray diffractometry and pulsed laser damage testing at 532 nm. Our results indicate that considerable additional work will be required to optimize the optical performance of coatings produced by these novel deposition methods, let alone understand the relationship between deposition process, structure, optical characteristics and durability.