Broadband nonlinear optical properties of red fluorescent carbon dots
Carbon dots (CDs) provide ideal platforms for applications in bioimaging, sensing, and photocatalysis. Herein, a new type of red fluorescent carbon dot (RCD) is successfully synthesized, and its broadband nonlinear optical (NLO) properties are systematically characterized. The nonlinear absorption c...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Results in Physics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379722003102 |
| _version_ | 1818204106391552000 |
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| author | Wenxuan Fan Jun He Hao Wei Chen Zhang Menglong Zhu Defeng Xu Si Xiao Jiangling He Zhihui Chen Jianqiao Meng |
| author_facet | Wenxuan Fan Jun He Hao Wei Chen Zhang Menglong Zhu Defeng Xu Si Xiao Jiangling He Zhihui Chen Jianqiao Meng |
| author_sort | Wenxuan Fan |
| collection | DOAJ |
| description | Carbon dots (CDs) provide ideal platforms for applications in bioimaging, sensing, and photocatalysis. Herein, a new type of red fluorescent carbon dot (RCD) is successfully synthesized, and its broadband nonlinear optical (NLO) properties are systematically characterized. The nonlinear absorption coefficient (αNL) values of the RCDs at 580, 630, 650, 1064 nm are − 0.65, −3.09, −4.02, and 0.14 cm/GW, respectively. The nonlinear absorption transforms from saturable absorption to two-photon absorption in the near-infrared domain. We demonstrate the application of the RCDs for imaging Hela cells. Our results indicate that the synthesized RCDs with a broadband NLO response exhibit potential applications in saturable absorbers and deep-tissue imaging. |
| first_indexed | 2024-12-12T03:35:58Z |
| format | Article |
| id | doaj.art-95a924d9e56e43cbb20def6a6c614d75 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-12-12T03:35:58Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-95a924d9e56e43cbb20def6a6c614d752022-12-22T00:39:48ZengElsevierResults in Physics2211-37972022-07-0138105591Broadband nonlinear optical properties of red fluorescent carbon dotsWenxuan Fan0Jun He1Hao Wei2Chen Zhang3Menglong Zhu4Defeng Xu5Si Xiao6Jiangling He7Zhihui Chen8Jianqiao Meng9Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaDepartment of Applied Physics, School of Microelectronics and Physics, Hunan University of Technology and Business, Changsha 410205, PR ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaHunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR ChinaNational R&D Center for Se-rich Agricultural. Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern, Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, PR China; Corresponding authors.Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR China; Corresponding authors.Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, 932 South Lushan Road, Changsha, Hunan 410083, PR China; Corresponding authors.Carbon dots (CDs) provide ideal platforms for applications in bioimaging, sensing, and photocatalysis. Herein, a new type of red fluorescent carbon dot (RCD) is successfully synthesized, and its broadband nonlinear optical (NLO) properties are systematically characterized. The nonlinear absorption coefficient (αNL) values of the RCDs at 580, 630, 650, 1064 nm are − 0.65, −3.09, −4.02, and 0.14 cm/GW, respectively. The nonlinear absorption transforms from saturable absorption to two-photon absorption in the near-infrared domain. We demonstrate the application of the RCDs for imaging Hela cells. Our results indicate that the synthesized RCDs with a broadband NLO response exhibit potential applications in saturable absorbers and deep-tissue imaging.http://www.sciencedirect.com/science/article/pii/S2211379722003102Carbon dotsNonlinear opticsTwo-photon absorptionFluorescenceBiological imaging |
| spellingShingle | Wenxuan Fan Jun He Hao Wei Chen Zhang Menglong Zhu Defeng Xu Si Xiao Jiangling He Zhihui Chen Jianqiao Meng Broadband nonlinear optical properties of red fluorescent carbon dots Results in Physics Carbon dots Nonlinear optics Two-photon absorption Fluorescence Biological imaging |
| title | Broadband nonlinear optical properties of red fluorescent carbon dots |
| title_full | Broadband nonlinear optical properties of red fluorescent carbon dots |
| title_fullStr | Broadband nonlinear optical properties of red fluorescent carbon dots |
| title_full_unstemmed | Broadband nonlinear optical properties of red fluorescent carbon dots |
| title_short | Broadband nonlinear optical properties of red fluorescent carbon dots |
| title_sort | broadband nonlinear optical properties of red fluorescent carbon dots |
| topic | Carbon dots Nonlinear optics Two-photon absorption Fluorescence Biological imaging |
| url | http://www.sciencedirect.com/science/article/pii/S2211379722003102 |
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