Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids
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...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/154370 |
| _version_ | 1811686145953628160 |
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| author | Ni, Meng Yin, Danlei Wang, Jun Ma, Jie Dong, Zhili Tang, Dingyuan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Ni, Meng Yin, Danlei Wang, Jun Ma, Jie Dong, Zhili Tang, Dingyuan |
| author_sort | Ni, Meng |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T04:55:46Z |
| format | Journal Article |
| id | ntu-10356/154370 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:55:46Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1543702021-12-23T03:48:55Z Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids Ni, Meng Yin, Danlei Wang, Jun Ma, Jie Dong, Zhili Tang, Dingyuan School of Electrical and Electronic Engineering School of Materials Science and Engineering Engineering::Electrical and electronic engineering Co-Precipitation Laser Ceramics 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. Agency for Science, Technology and Research (A*STAR) Accepted version The research is partially supported by A*Star AME IRG project (A1883c0003), National Natural Science Foundation of China (NSFC), grant no. 61875078 and Priority Academic Program Development of Jiangsu Higher Education Institutions (PADP). 2021-12-23T03:48:54Z 2021-12-23T03:48:54Z 2021 Journal Article 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. https://dx.doi.org/10.1016/j.optmat.2021.111789 0925-3467 https://hdl.handle.net/10356/154370 10.1016/j.optmat.2021.111789 2-s2.0-85119259930 en A1883c0003 Optical Materials © 2021 Elsevier B.V All rights reserved. This paper was published in Optical Materials and is made available with permission of Elsevier B.V application/pdf |
| spellingShingle | Engineering::Electrical and electronic engineering Co-Precipitation Laser Ceramics Ni, Meng Yin, Danlei Wang, Jun Ma, Jie Dong, Zhili Tang, Dingyuan Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title | Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title_full | Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title_fullStr | Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title_full_unstemmed | Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title_short | Efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| title_sort | efficiency degradation of laser ceramics caused by inappropriate dispersants and sintering aids |
| topic | Engineering::Electrical and electronic engineering Co-Precipitation Laser Ceramics |
| url | https://hdl.handle.net/10356/154370 |
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