Increasing the Laser-Induced Damage Threshold of Optical Components by Atmospheric Pressure Plasma Surface Finishing
University of Applied Sciences and Arts, Faculty of Natural Sciences and Technology, 37085 Göttingen, Germany
* Corresponding author: firstname.lastname@example.org
Published online: 10 September 2019
In this contribution, a plasma-based approach for finishing optics surfaces is introduced. Experiments were performed on classically manufactured zinc crown glass and sapphire. It is shown that the use of direct dielectric barrier discharge plasma at atmospheric pressure allows the removal of surface-adherent carbonaceous contaminations that were induced by classical manufacturing. Moreover, the use of such plasma leads to a certain decrease in surface roughness. Both effects, surface cleaning and smoothing finally increase the laser-induced damage threshold of optical components.
© The Authors, published by EDP Sciences, 2019
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