Development of high reflectance coatings for ground-based astronomical instruments

Details Development of high reflectance coatings for ground-based astronomical instruments Development of high reflectance coatings for ground-based astronomical instruments

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982spie..332..310b&link_type=abstract

IN: International Conference on Advanced Technology Optical Telescopes, Tucson, AZ, March 11-13, 1982, Proceedings (A83-30976 13

Computer Science

Performance

1

Antireflection Coatings, Mirrors, Optical Reflection, Telescopes, Aluminum Coatings, Emittance, Gold, Laminates, Reflectance, Silver, Strata

Scientific paper

Theoretical and experimental research has been conducted with a view to developing multilayer coatings for astronomical telescope mirrors. Conventional thin-film multilayer techniques have been employed to produce multilayer coatings in which part of the performance is achieved by interference. The advantage of this approach is that existing design techniques and coating technology can be used. The thickness tolerances, however, are more demanding than for single metal layers. Test results for experimental coatings with an Al2O3 overcoat on silver and a thin silver layer on aluminum suggest that performance superior to that of a single-layer aluminum coating should be possible.

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