Fabrication and characterization of polycrystalline Ho:CaF2 transparent ceramics for 2.0 μm laser application

被引：14

作者：

Li, Weiwei ^{[1
,2
]}

Huang, Haijun ^{[1
]}

Mei, Bingchu ^{[2
]}

Song, Jinghong ^{[3
]}

Yi, Guoqiang ^{[2
]}

Guo, Xinsheng ^{[2
]}

机构：

[1] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Hubei, Peoples R China

[2] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Hubei, Peoples R China

[3] Wuhan Univ Technol, Ctr Mat Res & Anal, Wuhan 430070, Hubei, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 207卷

基金：

中国国家自然科学基金;

关键词：

Transparent ceramics; CaF2; Holmium; Microstructure; Spectral properties; OPTICAL-PROPERTIES; MICROSTRUCTURE;

D O I：

10.1016/j.matlet.2017.07.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, high optical quality of Ho:CaF2 (2 at%) transparent ceramics based on nanopowders were fabricated by hot-pressed method successfully. Ho:CaF2 ceramics with the average size of about 500 nm were obtained at 800 degrees C for 1 h. The transmittance of the sample measured to be 89% at the wavelength of 1300 nm. The reduced transmittance in the near-IR range is likely due to the residual pores in the ceramics. The spectral properties of Ho:CaF2 ceramics demonstrated that there is a strong emission peak around 2030 nm under the excitation of 640 nm. Crown Copyright (C) 2017 Published by Elsevier B.V. All rights reserved.

引用

页码：37 / 40

页数：4

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