Improved Nd distribution in Czochralski grown YAG crystals by implementation of the accelerated crucible rotation technique

被引：7

作者：

Saleh, Muad ^{[1
,2
]}

Kakkireni, Saketh ^{[2
,3
]}

McCloy, John ^{[1
,2
,3
]}

Lynn, Kelvin G. ^{[1
,2
,3
,4
]}

机构：

[1] Washington State Univ, Mat Sci & Engn Program, POB 641030, Pullman, WA 99164 USA

[2] Washington State Univ, Ctr Mat Res, POB 642711, Pullman, WA 99164 USA

[3] Washington State Univ, Sch Mech & Mat Engn, POB 642920, Pullman, WA 99164 USA

[4] Washington State Univ, Dept Phys, POB 642814, Pullman, WA 99164 USA

来源：

OPTICAL MATERIALS EXPRESS | 2020年 / 10卷 / 02期

关键词：

BRIDGMAN GROWTH; DIRECTIONAL SOLIDIFICATION; NUMERICAL-SIMULATION; FORCED-CONVECTION; ACRT; SEGREGATION; COEFFICIENT; CDXHG1-XTE; NDYAG;

D O I：

10.1364/OME.380174

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nd:YAG is a well-known laser material typically grown from the melt using the Czochralski (CZ) method, and like many other doped materials grown from the melt, it suffers from dopant segregation, giving an average Nd concentration in the crystal (Nd%) far less than that in the melt, with Nd variation along the growth axis. Here, the Nd segregation issue is addressed by the successful implementation of the Accelerated Crucible Rotation Technique (ACRT) with CZ. Compared to conventional CZ, ACRT provided improved Nd uniformity, higher Nd incorporation, and control of Nd% along the growth axis, even achieving higher Nd% in the crystal than the initial Nd from the overall melt. ACRT also affects the solid/liquid interface shape and thus the radial segregation. It is thus shown that ACRT and the mixing it provides is promising for achieving unconventional dopant profiles in CZ crystals. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：632 / 644

页数：13

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