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Title: Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids
Authors: Ni, Meng
Yin, Danlei
Wang, Jun
Ma, Jie
Dong, Zhili
Tang, Dingyuan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Ni, M., Yin, D., Wang, J., Ma, J., Dong, Z. & Tang, D. (2021). Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids. Optical Materials.
Project: A1883c0003
Journal: Optical Materials
Abstract: Lasing quality 8 at.% Yb:Lu2O3 laser ceramics were fabricated using nanocrystalline Yb:Lu2O3 powders synthesized with a modified coprecipitation method and either (NH4)2SO4 or PAA (Poly acrylic acid) as a dispersant. Although using (NH4)2SO4 as a dispersant the calcinated Yb:Lu2O3 powders could have better sinterability, and the sintered Yb:Lu2O3 ceramics could even have higher in-line transmittance, it was found that the laser ceramics always had much lower lasing efficiency than those fabricated with PAA as a dispersant. We show that the efficiency degradation of the laser ceramics is due to the photodarkening caused by using (NH4)2SO4 as a dispersant.
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2021.111789
Rights: © 2021 Elsevier B.V All rights reserved. This paper was published in Optical Materials and is made available with permission of Elsevier B.V
Fulltext Permission: embargo_20231123
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles
MSE Journal Articles

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