Coating Capabilities

Quasi-Rugate thin film designs are optimized for high power laser applications from ultra-fast to CW applications across the wavelength range of 355nm to 2200nm. Each design has a unique refractive index profile specifically tuned to give optimal performance for our customers' applications. Quasi-Rugate design structures have the highest demonstrated Laser Damage Thresholds of any Ion Beam Sputtered films.

Ion Beam Sputtering (Conventional)

We offer traditional Ion Beam Sputtered coatings with conventional Ta2O5/SiO2 and HfO2/SiO2 discrete material thin film designs. Using this method, we can produce low loss coatings with either very low or very high reflectivity. Very precise anti-reflection coatings have been produced with R < 0.005% (50ppm) for both laser crystals and optical glasses. We can also produce high-reflector coatings with R > 99.99% for selected wavelengths. Ion Beam Sputtering is a precise deposition process and, when combined with our broad-band optical monitoring, allows us to produce accurate Dichroic, Beamsplitter, and Partial-Reflector coatings on a variety of materials. These coatings are very dense and do not have the water absorption/desorption spectral shift generally seen with Electron-Beam evaporated coatings. Our films are stable and environmentally robust.

Electron-Beam Gun

We offer a special line of MaxCoat™ Electron-Beam (E-Beam) coatings that are optimized for high laser damage thresholds from 355nm – 2140nm. MaxCoat™ coating processes are tailored for specific applications from ultra-fast to CW and are available for all of our laser crystals and laser grade optics. E-Beam processing is the most commonly used deposition process for laser applications and is an economical solution for many applications that require high laser damage threshold coatings.