IR coatings means coatings for infrared region usually in 2.5μm(2500nm)-16μm. Different coating materials will shows different unique performances. Usually CPG use her own Ge, ZnS coating materials, but CPG also imported the speical from the world.
1.High energy CO2 laser coatings (10.6μm)
2. High performance ZnSe broadband AR coatings
3. DLC coatings