Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids

Meng Ni; Danlei Yin; Jun Wang; Jie Ma; Zhili Dong; Dingyuan Tang

doi:10.1016/j.optmat.2021.111789

Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids

Meng Ni, Danlei Yin, Jun Wang^*, Jie Ma, Zhili Dong, Dingyuan Tang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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.

Original language	English
Article number	111789
Journal	Optical Materials
Volume	122
DOIs	https://doi.org/10.1016/j.optmat.2021.111789
Publication status	Published - Dec 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

Keywords

Co-precipitation
Colour centres
Photodarkening
Transparent ceramics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.optmat.2021.111789

Cite this

@article{53632b01462d419fa6a53be9cea12ae3,

title = "Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids",

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.",

keywords = "Co-precipitation, Colour centres, Photodarkening, Transparent ceramics",

author = "Meng Ni and Danlei Yin and Jun Wang and Jie Ma and Zhili Dong and Dingyuan Tang",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = dec,

doi = "10.1016/j.optmat.2021.111789",

language = "English",

volume = "122",

journal = "Optical Materials",

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TY - JOUR

T1 - Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids

AU - Ni, Meng

AU - Yin, Danlei

AU - Wang, Jun

AU - Ma, Jie

AU - Dong, Zhili

AU - Tang, Dingyuan

PY - 2021/12

Y1 - 2021/12

N2 - 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.

AB - 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.

KW - Co-precipitation

KW - Colour centres

KW - Photodarkening

KW - Transparent ceramics

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JO - Optical Materials

JF - Optical Materials

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Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

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