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Reflection/suppression coatings for 900 - 1200 A radiationThe design and performance of multiple-layer, selective-reflection, selective-suppression coatings for the 900 - 1200 A band are described. These coatings are designed to optimize both high reflectivity at a desirable wavelength and low reflectivity at an undesirable wavelength. The minimum structure for a selective coating consists of a thin metal or metal oxide layer (50 - 150 A thickness) over an aluminum substrate protected with a semi-transparent dielectric (100 - 1000 A thickness). Predicted coating performance is strongly effected by varying the layer combination and thickness. A graphical method of optimizing the coating layer structure is developed. Aluminum, silicon, their oxides, and gold have been investigated as coating layer materials. A very simple coating with a 1026 to 1216 A reflectivity ratio greater than 100 was fabricated. Such reflection/suppression coatings may be of great utility to spaceborne EUV spectrographs.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Edelstein, Jerry
(California, University Berkeley, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Meeting Information
Meeting: X-ray/EUV Optics for Astronomy and Microscopy
Location: San Diego, CA
Country: United States
Start Date: August 7, 1989
End Date: August 11, 1989
Sponsors: SPIE, JPL, New Mexico State Univ.
Accession Number
Funding Number(s)
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