Laser damage performance of fused silica and potassium dihydrogen phosphate surfaces finished by fluid jet polishing

Nathaniel D. Urban; Kyle R. P. Kafka; Ji-Mi Jang; Kenneth L. Marshall; Rhys Emms; David Walker; Stavros G. Demos

doi:10.1117/12.2642292

2 December 2022 Laser damage performance of fused silica and potassium dihydrogen phosphate surfaces finished by fluid jet polishing

Nathaniel D. Urban, Kyle R. P. Kafka, Ji-Mi Jang, Kenneth L. Marshall, Rhys Emms, David Walker, Stavros G. Demos

Author Affiliations +

Proceedings Volume PC12300, Laser-Induced Damage in Optical Materials 2022; PC1230008 (2022) https://doi.org/10.1117/12.2642292
Event: SPIE Laser Damage, 2022, Rochester, New York, United States

Abstract

We investigate fluid jet polishing (FJP) for its potential to be used for freeform finishing of fused silica and potassium dihydrogen phosphate (KDP and DKDP) crystals without compromising laser damage performance. As part of this effort, a different slurry for each material was utilized. Samples with different amounts of material removed by FJP were prepared for damage testing. The results show that FJP can improve or maintain the laser damage resistance of these materials while simultaneously functioning as a deterministic, sub-aperture finishing method.

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Citation Download Citation

Nathaniel D. Urban, Kyle R. P. Kafka, Ji-Mi Jang, Kenneth L. Marshall, Rhys Emms, David Walker, and Stavros G. Demos "Laser damage performance of fused silica and potassium dihydrogen phosphate surfaces finished by fluid jet polishing", Proc. SPIE PC12300, Laser-Induced Damage in Optical Materials 2022, PC1230008 (2 December 2022); https://doi.org/10.1117/12.2642292

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