メタリン酸カルシウムガラスの紫外光透過特性

概要

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The ultraviolet transmission characteristics of a calcium meta phosphate glass is reported. A calcium meta phosphate glass was prepared using high-purity reagents and taking care in avoiding contamination during glass preparation. This glass exhibited an excellent transmittance in the wavelength range from 250 to 1500 nm(10 mm thick)and an ultraviolet absorption-edge wavelength of 178 nm(3 mm thick). The absorptionedge value was about 60 nm shorter than that reported by Kordes et al. Irradiation of 248-nm excimer laser light to the glass induced strong absorption at <300 nm and weak absorption in the 350-550 nm range. The weak absorption consists of two bands, which are considered to be due to P-O^<(+)> and Ca^<2+(-)>.
社団法人日本セラミックス協会の論文
2000-02-01