The 40D20ER.1 Broadband Aluminum Mirror is an excellent general purpose, broadband reflector. This 101.6 mm (4.0 inch) diameter mirror is made from a 17.7 mm thick Borofloat® 33 substrate which is coated with the ER.1 aluminum coating. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. The ER.1 enhanced aluminum coating may be used wherever a broadband visible and near infrared reflector is needed. A multilayer dielectric stack deposited over the aluminum film boosts reflectance and improves the durability of the coating. The 40D20ER.1 has an average reflectivity greater than 93% from 450–700 nm. This mirror has a λ/10 surface flatness and a 15-5 surface quality.
| Newport MKS | |
|---|---|
| Product Category | Optical Mirrors |
| Product Number | 40D20ER.1 |
| Product Name | Aluminum Mirror, Borofloat, 101.6 mm, λ/10, 450-700 nm |
| Wavelength Range | 450 to 700 nm (4500 to 7000 Å) |
| Diameter/Width | 102 mm (4 inch) |
| Thickness | 17.7 mm (0.6969 inch) |
| Mirror Shape | Round; Round |
