Through Okamoto Optics, AOS makes extensive coating capabilities available for both development and production. We provide evaporated coatings for a wide range of applications and specialize in large optics and coatings for high laser damage threshold. Please see our growing list of publications.
In 2009 we began producing high damaging threshold coatings for short pulse applications, which demonstrate both broadband and low GVD performance. The process built upon process technology we used extensively for longer pulse coatings and has been adapted to offer the following advantages over more conventional sputtered coatings:
Very High Damage Threshold: In contrast to more typical damage thresholds of < 0.5J/cm2, our coatings have been tested as high as 12 J/cm2.
Stress Control: Using ion-assist, we partially densify each coating layer to a design specification to actively tune stress during the deposition. This allows us to balance tensile and compressive stresses in the composite coating. This allows to make low-stress multilayer coatings for tight wavefront control of mirrors.
Up to 1700 mm
HR, AR B/S from 400 — 2000 nm
Up to 20/10, < 10 A RMS roughness
Al, Ag, Au + high damage threshold coatings
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