Highly transparent terbium gallium garnet crystal fabricated by the floating zone method for visible-infrared optical isolators

被引：44

作者：

Chen, Zhe ^{[1
]}

Yang, Lei ^{[1
]}

Wang, Xiangyong ^{[1
]}

Wang, Jun ^{[1
]}

Hang, Yin ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China

来源：

OPTICAL MATERIALS | 2015年 / 46卷

关键词：

Floating zone method; Crystal structure; Optical materials; Magneto-optical materials; GROWTH; TB3AL5O12;

D O I：

10.1016/j.optmat.2015.03.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly transparent terbium gallium garnet (Tb3Ga5O12; TGG) single crystal having a large Verdet constant based on the visible and near-infrared region (VIS-NIR) Faraday rotator was grown by Floating Zone (FZ) growth machine. We successfully grew TGG single-crystal rods of 8-10 mm in diameter, which was suitable for the use in optical devices. The crystal showed a full-width at half-maximum as little as 18 arcsec by the X-ray rocking curve measurement. The Faraday rotation (B = 0.55T) was investigated at wavelength of 532, 632.8, 1064 nm at room temperature. The lower weak absorption coefficient, higher Verdet constant, thermal conductivity and laser induced damage threshold (LIDT) compared to the commercial TGG gives the great potential of using this new method to meet the increasing demand of VISNIR Faraday rotators (FRs). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：12 / 15

页数：4

共 21 条

[1] Magneto-optical properties of Eu2+-containing aluminoborosilicate glasses with ferromagnetic interactions [J].