Status of NIF mirror technologies for completion of the NIF facility

C. J. Stolz

doi:10.1117/12.797470

25 September 2008 Status of NIF mirror technologies for completion of the NIF facility

C. J. Stolz

Proceedings Volume 7101, Advances in Optical Thin Films III; 710115 (2008) https://doi.org/10.1117/12.797470
Event: Optical Systems Design, 2008, Glasgow, Scotland, United Kingdom

Abstract

The 1600 mirrors required for the National Ignition Facility (NIF) are now coated with the last optics currently being installed. The combined surface area of the NIF mirrors is almost 450 square meters, roughly 3.4 times greater than the surface area of the two Keck primary mirrors. Additionally, the power handling specification of NIF mirrors is 19 orders of magnitude greater than that of the Keck mirrors. The NIF laser will be at least 40× greater energy than the previous LLNL fusion laser called NOVA. To manufacture these mirrors, a number of new technologies (electrolytic in-situ dressing, ion figuring, source stabilization) were used that were not available for previous fusion laser optics. Post deposition technologies designed to increase laser resistance (off-line laser conditioning, solarization, air knives) have also been utilized. This paper summarizes the differences in technologies used to manufacture NIF mirrors from those used for previous fusion lasers and examines potential future technologies that would enable higher fluence operations and extend lifetimes.

Citation Download Citation

C. J. Stolz "Status of NIF mirror technologies for completion of the NIF facility", Proc. SPIE 7101, Advances in Optical Thin Films III, 710115 (25 September 2008); https://doi.org/10.1117/12.797470

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