UV Enhanced and Protected Aluminum Mirrors

•UV Enhanced Aluminum: Ravg >90% for 250 - 450 nm

•Protected Aluminum: Ravg > 90% for 450 nm - 2 µm, Ravg > 95% for 2 - 20 µm

•Surface Flatness: λ/10 (λ/8 for 2" x 2" Squares)

•Surface Quality: 40-20 Scratch-Dig

 

Our UV-Enhanced Aluminum mirrors are a cost effective solution for UV applications. Because bare aluminum is extremely delicate and susceptible to damage, a protective overcoat is layered over the aluminum to prolong the life of the mirror. Our UV-enhanced coating offers >90% reflectance from 250 to 450 nm. Please see the Graphs tab for reflectance curves.

 

Protected Aluminum coated mirrors are a good option for many general broadband applications. An SiO2 coating is used to protect the delicate aluminum coating, making it suitable for laboratory and industrial use. The protected aluminum coating has a smaller chance of tarnishing than protected silver in a high humidity environment and gives a reflectance that most closely matches the reflectance of a bare aluminum coating. These mirrors have an average reflectance greater than 90% from 450 nm to 2 µm and greater than 95% over the 2 to 20 µm spectral range.