Funct. Mater. 2014; 21 (4): 472-475.

http://dx.doi.org/10.15407/fm21.04.472

Features of YAG crystals growth by the Czochralski method in Mo crucibles

P.Arhipov[1], S.Tkachenko[1], S.Vasyukov[1], M.Biatov[1], O.Sidletskiy[1], P.Mateychenko[2], E.Bryleva[2]

[1] Institute for Scintillation Materials, STC "Institute for Single Crystals" National Academy of Sciences of Ukraine, 60 Lenin Ave., 61001 Kharkiv, Ukraine
[2] Institute for Single Crystals, National Academy of Sciences of Ukraine, 60 Lenin Ave., 61001 Kharkiv, Ukraine

Abstract: 

Results on growth of Y3Al5O12 (YAG) crystals by the Czochralski method in Mo crucibles in reducing and oxidizing atmosphere are presented. The ways to improve the growth technology for obtaining of high quality crystals are determined. The factors providing reduction of absorption in UV-band are discussed, as well as post-growth annealing regimes aimed at elimination of these absorption bands.

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