11 October 2015 Process for repairing large scratches on fused silica optics
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Proceedings Volume 9633, Optifab 2015; 96330A (2015) https://doi.org/10.1117/12.2195698
Event: SPIE Optifab, 2015, Rochester, New York, United States
Abstract
Scratches at the surface of fused silica optics can be detrimental for the performance of optical systems because they initiate damage on the optic but also they perturb the amplitude or phase of the transmitted laser light. Removing scratches by conventional polishing techniques can be time consuming as it is an iterative and long process, especially when hours of polishing time are required to obtain very high surface accuracy. So we have investigated ways to remove them with local laser processing. The silica is then heated at temperature higher than the softening point to heal the cracks.
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Philippe Cormont, Philippe Cormont, Antoine Bourgeade, Antoine Bourgeade, Sandy Cavaro, Sandy Cavaro, Thomas Doualle, Thomas Doualle, Gael Gaborit, Gael Gaborit, Laurent Gallais, Laurent Gallais, Jean-Luc Rullier, Jean-Luc Rullier, Daniel Taroux, Daniel Taroux, } "Process for repairing large scratches on fused silica optics", Proc. SPIE 9633, Optifab 2015, 96330A (11 October 2015); doi: 10.1117/12.2195698; https://doi.org/10.1117/12.2195698
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