The Growth of Ce,Nd:YAG Single Crystal Under New Atmosphere Condition

Abstract

Ce³⁺,Nd³⁺:YAG single crystal was grown by Czochralski method without using any reduction gas. The growth was done in the atmosphere of pure nitrogen. The limited-flow of nitrogen gas was used for evacuating the produced oxygen in order to change Ce⁴⁺ to Ce³⁺ ions. The X-ray diffraction, absorption and luminescence spectrums were obtained from the sample of the grown crystal. The obtained results were discussed and compared with previously published data. The lattice parameter a = 12.001 Å was determined by the X-ray powder diffraction data. Distribution of the cores in a disc sample was studied. There was only one small central core in the sample.