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Research Article | Open Access

Regulation of the sintering trajectory of Ho,Pr:Y2O3 ceramics for 2.9 μm mid-infrared lasers by atmospheric sintering

Qing Li1,2, Fei Liang1, Jun Wang2( ), Yan Ling Xue3,4,5( ), Jie Ma2, Peng Liu2, Shiyu Sun6, Zhan Hui3, Jian Zhang7, Changhua Zhang8, Lili Hu6, Haohai Yu1, Huaijin Zhang1, Dingyuan Tang8( )
State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China
Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China
Shanghai Key Laboratory of Multidimensional Information Processing, School of Communication and Electronics Engineering, East China Normal University, Shanghai 200241, China
Shanghai Branch, Hefei National Laboratory, and Shanghai Research Center for Quantum Sciences, Shanghai 201315, China
Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, China
Future Technology School, Shenzhen Technology University, Shenzhen 518118, China
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Abstract

The sintering trajectory of the Ho,Pr:Y2O3 ceramics could be effectively adjusted by sintering in a flowing oxygen atmosphere instead of vacuum. The final-stage grain growth was significantly suppressed by the use of oxygen atmosphere presintering, resulting in smaller average grain sizes than those of samples sintered under vacuum, while the same relative density was achieved. After hot isostatic pressing (HIP), the oxygen presintered Ho,Pr:Y2O3 ceramics achieved excellent optical quality, with transmittance exceeding 80% at a wavelength of 680 nm. The codoping of Pr3+ as deactivating ions effectively depopulated the lower energy level 5I7 during the Ho3+:5I6 → 5I7 transition, thereby making the Ho,Pr:Y2O3 ceramics more conducive to promoting population inversion in the 2.9 μm laser wavelength range.

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Keywords

Y2O3 ceramicssintering trajectoryHo3+/Pr3+mid-infrared laserfluorescence properties

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Journal of Advanced Ceramics
Volume 14 Issue 1,
January 2025
Article number: 9221006
DOI: 10.26599/JAC.2024.9221006

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Cite this article:
Li Q, Liang F, Wang J, et al. Regulation of the sintering trajectory of Ho,Pr:Y2O3 ceramics for 2.9 μm mid-infrared lasers by atmospheric sintering. Journal of Advanced Ceramics, 2025, 14(1): 9221006. https://doi.org/10.26599/JAC.2024.9221006

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Received: 09 July 2024
Revised: 11 November 2024
Accepted: 20 November 2024
Published: 09 December 2024
© The Author(s) 2025.

This is an open access article under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/).