Relations between subsurface damage depth and surface roughness of grinded fused silica

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Relations between subsurface damage depth and surface roughness using the Abbott Firestone curve

Subsurface damages (SSD), which are introduce during grinding process of optical components for high power lasers applications, act as initiator for laser damage and are responsible of the low lifetime of these components. The knowledge of the SSD depth is essential to remove the damaged layer of the optical component during the last finishing step of grinding. However, existing methods to meas...

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Managing subsurface damage during the shaping process and removing subsurface damage during the polishing process is essential in the production of low damage density optical components, such as those required for use on high peak power lasers. Removal of subsurface damage, during the polishing process, requires polishing to a depth which is greater than the depth of the residual cracks present...

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Depth Profiling of Polishing-Induced Contamination on Fused Silica Surfaces

Laser-induced damage on optical surfaces is often associated with absorbing contaminants introduced by the polishing process. This is particularly the case for W optics. In the present study, secondmy ion mass spectroscopy (SIMS) was used to measure depth profiles of finishing-process contamination on fused silica surfaces. Contaminants detected include the major polishing compound components (...

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Impact of two CO(2) laser heatings for damage repairing on fused silica surface.

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ژورنال

عنوان ژورنال: Optics Express

سال: 2013

ISSN: 1094-4087

DOI: 10.1364/oe.21.030433