FIELD: electricity.
SUBSTANCE: invention relates to laser engineering and can be used in alignment of laser systems, analysis of radiation intensity distribution in a laser beam, as well as for protection of currency and security papers. Anti-Stokes luminophore for imaging infrared laser radiation is obtained by mixing powders of anti-Stokes luminophore F(a)CD-546-2 in amount of 1–99 wt% and fluoride luminophore with fluorite structure – the rest. Fluoride luminophore composition corresponds to formula M1-xHoxF2+x, where M is selected from a group consisting of Ca, Sr and Ba taken separately or together; 0.01≤x≤0.90.
EFFECT: said luminophore is capable of inertia-free conversion of infrared laser radiation in the spectral range of wavelengths 780–1,650 nm and 1,850–2,150 nm into luminescence of the visible wavelength range at high resolution.
1 cl, 1 tbl, 3 dwg
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Authors
Dates
2019-09-12—Published
2018-08-01—Filed