25-07-2019 дата публикации
Номер: WO2019140582A1
Принадлежит:
The present invention relates to a novel photoelectron functional material, a growth method therefor, and a use thereof, and particularly relates to an alkaline earth metal fluoroborate compound, a crystal thereof, a preparation method therefor, and a use thereof. The present invention provides two alkaline earth metal fluoroborate compounds of formulas CaB5O7F3 and SrB5O7F3, nonlinear optical crystals of the series of compounds, a preparation method therefor, and a use thereof. The CaB5O7F3 and SrB5O7F3 crystals of the present invention can achieve frequency doubling of Nd:YAG (λ = 1.064 μm), and it is predicted that CaB5O7F3 and SrB5O7F3 can be used as harmonic generators for 3x, 4x, 5x, and 6x frequency multiplication of Nd:YAG, and even for generating harmonic light output shorter than 200 nm. Further, the obtained CaB5O7F3 and SrB5O7F3 single crystals are colorless and transparent, do not deliquesce, and have good chemical stability. It is foreseeable that CaB5O7F3 and SrB5O7F3 will ...
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