High LIDT with quasi-bubble free fused silica for better performing laser based nuclear fusion systems

Wolfgang Schlichting; Bodo Kühn; Mark Altwein; Frank Nürnberg; Eduard Klett

doi:10.1117/12.3032696

17 December 2024 High LIDT with quasi-bubble free fused silica for better performing laser based nuclear fusion systems

Wolfgang Schlichting, Bodo Kühn, Mark Altwein, Frank Nürnberg, Eduard Klett

Author Affiliations +

Proceedings Volume 13190, Laser-Induced Damage in Optical Materials 2024; 131900D (2024) https://doi.org/10.1117/12.3032696
Event: SPIE Laser Damage, 2024, San Ramon, CA, United States

Abstract

Laser based nuclear fusion requires enormous laser powers which are taxing on optical elements in the beam path and often lead to laser damage. A key factor in reducing risk of laser damage is minimizing bubbles, especially small bubbles and other inhomogeneities in the optical material. Over the decades, Heraeus Conamic has fine-tuned its fused silica manufacturing processes to improve material quality with respect to bubble size and quantity. In synthetic fused silica bubble quality can differ significantly depending on the respective process. Heraeus Conamic’s patented homogenization process results a in a reduced bubble content compared to the produced raw material. Heraeus Conamic’s homogenization process manages these microbubbles. These incremental but important recent fused silica material quality improvement enable higher laser power and more frequent shot of the laser systems in inertial fusion research and upcoming commercial systems.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Wolfgang Schlichting, Bodo Kühn, Mark Altwein, Frank Nürnberg, and Eduard Klett "High LIDT with quasi-bubble free fused silica for better performing laser based nuclear fusion systems", Proc. SPIE 13190, Laser-Induced Damage in Optical Materials 2024, 131900D (17 December 2024); https://doi.org/10.1117/12.3032696

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