Observation of optical gain from NV− center in diamond by femtosecond transient absorption
Single crystal diamonds with strong NV− luminescence were prepared by high-pressure high-temperature method and followed by electron irradiation and annealing process. The stimulated emission and gain characteristics of NV− diamond in femtosecond time scale are also studied using the transient absor...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Functional Diamond |
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| Online Access: | http://dx.doi.org/10.1080/26941112.2024.2449373 |
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| _version_ | 1832593487021735936 |
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| author | Chao Fang Wenhao Wang Qing Lou Liangchao Chen Yongsheng Hu Chong-Xin Shan |
| author_facet | Chao Fang Wenhao Wang Qing Lou Liangchao Chen Yongsheng Hu Chong-Xin Shan |
| author_sort | Chao Fang |
| collection | DOAJ |
| description | Single crystal diamonds with strong NV− luminescence were prepared by high-pressure high-temperature method and followed by electron irradiation and annealing process. The stimulated emission and gain characteristics of NV− diamond in femtosecond time scale are also studied using the transient absorption technique. Stimulated emission was observed at 660–800 nm, with an optical gain displayed in the range of 680–725 nm. Further test revealed that the optical gain lifetime is 3.5 ns and the gain coefficient is 0.16 cm−1, demonstrating the potential realization of color center lasers. |
| format | Article |
| id | doaj-art-91a328de90bc414489ff2db47f34335e |
| institution | Kabale University |
| issn | 2694-1120 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Functional Diamond |
| spelling | doaj-art-91a328de90bc414489ff2db47f34335e2025-01-20T14:38:00ZengTaylor & Francis GroupFunctional Diamond2694-11202025-12-015110.1080/26941112.2024.24493732449373Observation of optical gain from NV− center in diamond by femtosecond transient absorptionChao Fang0Wenhao Wang1Qing Lou2Liangchao Chen3Yongsheng Hu4Chong-Xin Shan5Key Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversityKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversityKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversityKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversityKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversityKey Laboratory of Material Physics, Ministry of Education, School of Physics, Zhengzhou UniversitySingle crystal diamonds with strong NV− luminescence were prepared by high-pressure high-temperature method and followed by electron irradiation and annealing process. The stimulated emission and gain characteristics of NV− diamond in femtosecond time scale are also studied using the transient absorption technique. Stimulated emission was observed at 660–800 nm, with an optical gain displayed in the range of 680–725 nm. Further test revealed that the optical gain lifetime is 3.5 ns and the gain coefficient is 0.16 cm−1, demonstrating the potential realization of color center lasers.http://dx.doi.org/10.1080/26941112.2024.2449373diamondnv− centerlaseroptical gain |
| spellingShingle | Chao Fang Wenhao Wang Qing Lou Liangchao Chen Yongsheng Hu Chong-Xin Shan Observation of optical gain from NV− center in diamond by femtosecond transient absorption Functional Diamond diamond nv− center laser optical gain |
| title | Observation of optical gain from NV− center in diamond by femtosecond transient absorption |
| title_full | Observation of optical gain from NV− center in diamond by femtosecond transient absorption |
| title_fullStr | Observation of optical gain from NV− center in diamond by femtosecond transient absorption |
| title_full_unstemmed | Observation of optical gain from NV− center in diamond by femtosecond transient absorption |
| title_short | Observation of optical gain from NV− center in diamond by femtosecond transient absorption |
| title_sort | observation of optical gain from nv center in diamond by femtosecond transient absorption |
| topic | diamond nv− center laser optical gain |
| url | http://dx.doi.org/10.1080/26941112.2024.2449373 |
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