Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics
5 at.% Yb:Y2O3 transparent ceramics were fabricated using vacuum sintering plus HIP. The ceramics doped with 1 at.% ZrO2 as the sintering additive were densified at 1700 °C in vacuum followed by HIPing at 1775 °C, while those without sintering additives were densified at 1520 °C in vacuum followed b...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2021
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| Online Access: | https://hdl.handle.net/10356/151380 |
| _version_ | 1826119624692858880 |
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| author | Wang, Jun Yin, Danlei Ma, Jie Liu, Peng Wang, Ying Dong, Zhili Kong, Ling Bing Tang, Dingyuan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wang, Jun Yin, Danlei Ma, Jie Liu, Peng Wang, Ying Dong, Zhili Kong, Ling Bing Tang, Dingyuan |
| author_sort | Wang, Jun |
| collection | NTU |
| description | 5 at.% Yb:Y2O3 transparent ceramics were fabricated using vacuum sintering plus HIP. The ceramics doped with 1 at.% ZrO2 as the sintering additive were densified at 1700 °C in vacuum followed by HIPing at 1775 °C, while those without sintering additives were densified at 1520 °C in vacuum followed by HIPing at 1450 °C. After sintering, both ceramics had relatively high in-line transmittance. However, during laser experiments, the ZrO2-doped Yb:Y2O3 (Zr-YbY) ceramics were photodarkened when irradiated by 940 nm pump light. The discoloration might be attributed to the formation of Zr3+ color centers during lasing. In contrast, no photodarkening effect was detected in the pure Yb:Y2O3 ceramics without sintering additives (P-YbY). The P-YbY ceramics exhibited much higher lasing efficiency (17%) than the Zr-YbY ceramics (9%). To our best knowledge, it is the first time that the photodarkening effect was detected in rare-earth doped sesquioxide laser ceramics. |
| first_indexed | 2024-10-01T05:03:07Z |
| format | Journal Article |
| id | ntu-10356/151380 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:03:07Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1513802021-06-23T08:51:07Z Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics Wang, Jun Yin, Danlei Ma, Jie Liu, Peng Wang, Ying Dong, Zhili Kong, Ling Bing Tang, Dingyuan School of Electrical and Electronic Engineering School of Materials Science and Engineering Engineering::Electrical and electronic engineering Photodarkening Solid-state Laser 5 at.% Yb:Y2O3 transparent ceramics were fabricated using vacuum sintering plus HIP. The ceramics doped with 1 at.% ZrO2 as the sintering additive were densified at 1700 °C in vacuum followed by HIPing at 1775 °C, while those without sintering additives were densified at 1520 °C in vacuum followed by HIPing at 1450 °C. After sintering, both ceramics had relatively high in-line transmittance. However, during laser experiments, the ZrO2-doped Yb:Y2O3 (Zr-YbY) ceramics were photodarkened when irradiated by 940 nm pump light. The discoloration might be attributed to the formation of Zr3+ color centers during lasing. In contrast, no photodarkening effect was detected in the pure Yb:Y2O3 ceramics without sintering additives (P-YbY). The P-YbY ceramics exhibited much higher lasing efficiency (17%) than the Zr-YbY ceramics (9%). To our best knowledge, it is the first time that the photodarkening effect was detected in rare-earth doped sesquioxide laser ceramics. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) The research is partially supported by the National Natural Science Foundation of China (No. 61575089), the Priority Academic Program Development of Jiangsu Higher Education Institutions, the fund of Ministry of Education (MOE), Singapore (Grant No. 2016-T1-001-026), and the fund of A*Star of Singapore (Grant No. A1883C0003). 2021-06-23T08:51:07Z 2021-06-23T08:51:07Z 2019 Journal Article Wang, J., Yin, D., Ma, J., Liu, P., Wang, Y., Dong, Z., Kong, L. B. & Tang, D. (2019). Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics. Journal of the European Ceramic Society, 39(2-3), 635-640. https://dx.doi.org/10.1016/j.jeurceramsoc.2018.10.003 0955-2219 0000-0003-4818-3419 0000-0003-0151-927X 0000-0001-6949-6196 0000-0001-8116-6747 https://hdl.handle.net/10356/151380 10.1016/j.jeurceramsoc.2018.10.003 2-s2.0-85054426790 2-3 39 635 640 en 2016-T1-001-026 A1883C0003 Journal of the European Ceramic Society © 2018 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Photodarkening Solid-state Laser Wang, Jun Yin, Danlei Ma, Jie Liu, Peng Wang, Ying Dong, Zhili Kong, Ling Bing Tang, Dingyuan Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title | Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title_full | Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title_fullStr | Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title_full_unstemmed | Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title_short | Pump laser induced photodarkening in ZrO2-doped Yb:Y2O3 laser ceramics |
| title_sort | pump laser induced photodarkening in zro2 doped yb y2o3 laser ceramics |
| topic | Engineering::Electrical and electronic engineering Photodarkening Solid-state Laser |
| url | https://hdl.handle.net/10356/151380 |
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