Dielectric Mirror, Ultra-broadband, 25.4 mm, 99% 0-50°, 350-700 nm

Fused Silica is synthetic amorphous silicon dioxide of extremely high purity. This non-crystalline, colorless silica glass combines a low content of inclusions with high refractive index homogeneity, a very low thermal expansion coefficient, and excellent transmittance in the wavelength regime from UV to NIR. As a result, these mirrors will perform better with temperature fluctuations and is ideal for high-energy laser applications due to its high energy damage threshold. For more information, please see our Optical Materials technical note.

Using superior ion beam sputtering coating technology, very high absolute reflectivity can be achieved across a large wavelength range. It is advantageous in low light situations when it is critical to collect as much light as possible. Depending on the coating type, you will have as much as R_S, R_P >99% for 350-1100 nm at 0-50° angle of incidence.

All dielectric coating construction is physically more durable than standard metallic coatings. Dielectric mirrors are more resistant to humidity, thermal changes, abrasion and salt exposure.