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Old Monday 27th November 2017, 11:53   #52
typo
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Join Date: Feb 2010
Location: Hertfordshire
Posts: 3,352
Dielectric mirror coatings combine alternating layers of high and low refractive index materials. Some of the most commonly used appear to be magnesium fluoride, silicon dioxide, tantalum pentoxide and titanium dioxide, but many dozens of other individual and combined materials are available to the optical engineers depending on the deposition technology used.

David

Last edited by typo : Monday 27th November 2017 at 13:02.
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