Radiation hardness of lithium niobate nonlinear optical crystals doped with Y, Gd, and Mg

We have studied the effect of gamma irradiation to various doses on optical characteristics (optical transmission spectra) of nominally undoped, rare earth-doped, and alkaline earth-doped lithium niobate crystals: LiNbO 3 , LiNbO 3 :Y (0.46 wt %), LiNbO 3 :Y,Mg (0.32, 0.24 wt %), LiNbO 3 :Mg (0.27 w...

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Bibliographic Details
Published in:Inorganic materials 2013-08, Vol.49 (8), p.821-825
Main Authors: Palatnikov, M. N., Efremov, I. N., Sidorov, N. V., Makarova, O. V., Kalinnikov, V. T.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Crystals
Dopants
Dosimetry
Gamma irradiation
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Ionizing radiation
Lithium niobates
Materials Science
Radiation hardness
Spectra
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Summary:We have studied the effect of gamma irradiation to various doses on optical characteristics (optical transmission spectra) of nominally undoped, rare earth-doped, and alkaline earth-doped lithium niobate crystals: LiNbO 3 , LiNbO 3 :Y (0.46 wt %), LiNbO 3 :Y,Mg (0.32, 0.24 wt %), LiNbO 3 :Mg (0.27 wt %), and LiNbO 3 :Gd (0.004, 0.04, 0.26, 0.43 wt %). We have examined the influence of the ionizing radiation dose, the nature of dopants, and their concentration on the optical transmission of the gamma-irradiated doped lithium niobate crystals. The results suggest that gamma-induced changes in the optical transmission of LiNbO 3 :Gd (≃0.004 and 0.04 wt %) crystals can be used for gamma dosimetry in the dose range ≃10 1 to 1.5 × 10 4 rad.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168513080116