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24 DECEMBER 2024
ArticleOptics Express

Nodular-defect induced degradation of laser damage resistance of 532 nm high reflectivity coating after exposure to gamma rays

The coupling effect of gamma-ray radiation and 532 nm nanosecond laser radiation on optical coatings and substrates was investigated. Fused silica and S-BSL7 glass with 532 nm high reflectivity (HR) coatings were irradiated using 60Co gamma-ray source at a dose rate of 1 Gy/s for a total dose of 1–500 kGy...