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Proceedings Paper

Special Application Coatings For The Vacuum Ultraviolet
Author(s): Bruce K. Flint
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Paper Abstract

Interest in vacuum ultraviolet optical coatings has increased in recent years, due to applications in space research, laser fusion, photochemistry, and analytical chemistry. A number of new high-efficiency coatings have been developed to satisfy the requirements of these applications. Materials limitations, more severe than those in the visible and IR, have limited broadband reflectors to 80-85% average reflectivity in the 1200-2000Å region. A new technology of multilayer dielectric coatings for the vacuum UV, beginning in 1973, has led to laser reflectors with reflectances as high as 95% at wavelengths as short as 1460A. Dichroic coatings with maximum reflectance in one spectral region, and high trans-mission in another, were developed for applications in UV pumping of longer-wavelength lasers, Raman shifting of UV laser lines, and generation of UV harmonics. Very narrowband interference filters, multi-layer dichroic reflective filters, and neutral density filters have been fabricated for rocket spectroscopy applications, as have high-efficiency UV AR coatings for lenses and laser optics. A summary of the current commercial UV coating technology and specific applications is presented,with graphs of reflectance and transmission versus wavelength. A description of measurement equipment and methods is given.

Paper Details

Date Published: 26 September 1978
PDF: 9 pages
Proc. SPIE 0140, Optical Coatings: Applications and Utilization II, (26 September 1978); doi: 10.1117/12.956276
Show Author Affiliations
Bruce K. Flint, Acton Research Corporation (United States)


Published in SPIE Proceedings Vol. 0140:
Optical Coatings: Applications and Utilization II
Gary W. DeBell; Douglas H. Harrison, Editor(s)

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