Crystal growth, structure and characterization of Er6B4O15 as self-activated eye-safe laser material within the near-infrared waveband

被引:2
作者
Wang, Yan [1 ]
Zhang, Wei [1 ,2 ]
Li, Ziyi [3 ]
Li, Jianfu [1 ]
Zhu, Zhaojie [1 ]
You, Zhenyu [1 ]
Tu, Chaoyang [1 ]
机构
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Yangqiao West Rd 155, Fuzhou 3500021, Fujian, Peoples R China
[2] Fuzhou Univ, Coll Chem, Fuzhou 350116, Fujian, Peoples R China
[3] Sichuan Univ, Coll Chem Engn, Chengdu 610227, Sichuan, Peoples R China
关键词
Er6B4O15; crystal structure; crystal growth; optical properties; flux method; HIGH-PRESSURE SYNTHESIS; MU-M;
D O I
10.1107/S2052520618001488
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new rare-earth borate Er6B4O15 was synthesized by a solid-state reaction technique. The crystal was obtained by a flux method. Single-crystal X-ray diffraction analysis revealed that the crystal structure is composed of ErO6 polyhedra sharing edges and BO3 groups. The absorption, near-infrared fluorescence spectra and the fluorescence decay curve of Er: I-4(13/2) energy level in the Er6B4O15 crystal were measured at room temperature. The absorption peak was located at 977 nm with absorption cross section of 1.16 x 10(-21) cm(2) and a full width at half-maximum (FWHM) of 16 nm, which is very suitable for commercial 980 nm laser diode pumping. A maximum emission peak at 1560 mm with a broad FWHM of 64 nm was observed in this crystal because of the Er3+ transition I-4(13/2)-> I-4(15/2), while the emission cross section was calculated to be 8.53 x 10(-20) cm(2). These results imply that the Er6B4O15 crystal is a promising candidate material for the achievement of an eye-safe near-infrared wavelength laser.
引用
收藏
页码:132 / 136
页数:5
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