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Optimization of thermal environment during crystal growth of large‐sized Nd:YAG by Temperature Gradient Technique
Author(s) -
Hongjun Li,
Jun Xu,
Liangbi Su,
Benxue Jiang,
Guangjun Zhao,
Guoqing Zhou,
Yongjun Dong
Publication year - 2007
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610781
Subject(s) - crucible (geodemography) , temperature gradient , micro pulling down , thermal , finite element method , crystal (programming language) , materials science , crystal growth , latent heat , position (finance) , core (optical fiber) , chemistry , analytical chemistry (journal) , thermodynamics , crystallography , composite material , chromatography , physics , computational chemistry , finance , quantum mechanics , computer science , programming language , economics
A finite‐element model is employed to analysis the thermal environments in Temperature Gradient Technique (TGT) furnace during the growth of large‐sized Nd:YAG crystal. The obtained results show that when the crucible is located at the lower position inside of the heater, a flatter solid‐liquid interface is established, which makes it easier to obtain the core‐free Nd:YAG crystal. Meanwhile, the lower crucible position can induce higher axial temperature gradient, which is beneficial to the release of latent heat. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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