Nd:YVO4 crystal growth by Czochralski technique with a submerged plate |
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| Authors: | H Zhang HS Fang LL Zheng ZG Hu GC Zhang |
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| Institution: | aDepartment of Engineering Physics, Tsinghua University, Beijing 100084, China;bDepartment of Mechanical Engineering, Stony Brook University, Stony Brook, NY11794, USA;cShool of Aerospace, Tsinghua University, Beijing 100084, China;dTechnical Institute of Physics and Chemistry of CAS, Beijing 100080, China |
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| Abstract: | This paper is to investigate the growth of Nd:YVO4 (yttrium vanadate) crystal by the modified Czochralski technique with a submerged plate. Numerical studies are performed to examine melt convection and heat transfer during Nd:YVO4 growth. The attention is paid to study the effects of initial elevation of the submerged plate, crystal diameter, and melt level on melt inclusions. It is found that the increase in crystal rotation rate and crystal diameter, and the decrease in melt level will increase the axial temperature gradient at the edge and in the center of the crystal, and change the interface shape from convex to flat. The experiments are also carried out to confirm the feasibility of the proposed new technique for controlling melt inclusions in Nd:YVO4 crystal growth. |
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| Keywords: | A1 Defects A1 Convection A1 Interfaces A2 Czochralski method A2 Single crystal growth B1 Oxides |
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