All optical coatings meet or exceed applicable MIL specifications and most are hard refractory oxides evaporated with electron beam gun sources and, in some cases, ion assist evaporation. Infrared coatings are produced to the same high standard as visible coatings, especially for durability in the 8-12 micron region. From laser protection to blowing sand, our optical coatings can be found on some of the most sophisticated fire control equipment worldwide.
If required, reflectance of less than 0.1% per surface can be obtained and verified. Because of SIO’s vast experience with coatings in many wave length regions, data concerning power levels, especially in the ultraviolet range, are readily available.
SIO has the necessary spectrophotometers and state-of-the-art metrology to measure performance as well as a complete test facility to verify adhesion, abrasion, humidity, temperature and solubility.
This BBAR is designed to operate over a broad region to anti-reflect tripled and quadrupled YAG and all wavelengths in between.
Overall transmission exceeds 98% average with a minimum of 96% when coated on two sides of a 1mm thick substrate.