The Effect of Oxidation/Reduction Disposing on Optical Properties of Mg: Fe: Mn: LiNbO3 Crystals

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The congruent tri-doped Mg:Mn:Fe:LiNbO3 crystal has been grown by Czochralski method. Some crystal samples are reduced in Li2CO3 powder at 500 ℃ for 24 hours or oxidized for 10 hours at 1100 ℃ in Nb2O5 powder. Compared with As-grown Mg:Mn:Fe:LiNbO3, the a
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