Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology
Dy<sup>3+</sup>-doped CaF<sub>2</sub>-SrF<sub>2</sub> crystals with various Dy<sup>3+</sup> dopant concentrations were synthesized by multicrucible temperature gradient technology (MC-TGT). Dy:CaF<sub>2</sub>-SrF<sub>2</sub> cry...
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MDPI AG
2021-07-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/8/907 |
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| author | Lihe Zheng Jianbin Zhao Yangxiao Wang Weichao Chen Fangfang Ruan Hui Lin Yanyan Xue Jian Liu Yang Liu Ruiqin Yang Haifeng Lu Xiaodong Xu Liangbi Su |
| author_facet | Lihe Zheng Jianbin Zhao Yangxiao Wang Weichao Chen Fangfang Ruan Hui Lin Yanyan Xue Jian Liu Yang Liu Ruiqin Yang Haifeng Lu Xiaodong Xu Liangbi Su |
| author_sort | Lihe Zheng |
| collection | DOAJ |
| description | Dy<sup>3+</sup>-doped CaF<sub>2</sub>-SrF<sub>2</sub> crystals with various Dy<sup>3+</sup> dopant concentrations were synthesized by multicrucible temperature gradient technology (MC-TGT). Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystals were fluorite structured and crystallized in cubic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mi>m</mi><mover accent="true"><mn>3</mn><mo>¯</mo></mover><mi>m</mi></mrow></semantics></math></inline-formula> space group, as characterized by X-ray diffraction. The crystallographic site concentration was calculated from the measured density by Archimedes’ hydrostatic weighing principle. The optical transmission reached over 90% with a sample thickness of 1.0 mm. The Sellmeier dispersion formula was obtained following the measured refractive index in a mid-IR range of 1.7–11 μm. Absorption coefficients of 6.06 cm<sup>−1</sup> and 12.71 cm<sup>−1</sup> were obtained at 804 nm and 1094 nm in 15% Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal. The fluorescence spectra of 15 at.% Dy:CaF<sub>2</sub>-SrF<sub>2</sub> showed the strongest wavelength peak at 2919 nm with a full width at half maximum (FWHM) of 267 nm under an excitation wavelength of 808 nm. The fluorescence lifetimes were illustrated for different Dy<sup>3+</sup> dopant levels of 5%, 10% and 15%. The results indicate that the Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal is a promising candidate for compact mid-IR lasers. |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-10T08:54:31Z |
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| series | Crystals |
| spelling | doaj.art-5e20dc3e5e88425f8f9a641bef785f432023-11-22T07:16:39ZengMDPI AGCrystals2073-43522021-07-0111890710.3390/cryst11080907Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient TechnologyLihe Zheng0Jianbin Zhao1Yangxiao Wang2Weichao Chen3Fangfang Ruan4Hui Lin5Yanyan Xue6Jian Liu7Yang Liu8Ruiqin Yang9Haifeng Lu10Xiaodong Xu11Liangbi Su12Key Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering, School of Physics and Astronomy, Yunnan University, Kunming 650500, ChinaKey Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering, School of Physics and Astronomy, Yunnan University, Kunming 650500, ChinaKey Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, ChinaSchool of Technology, Pu’er University, Pu’er 665000, ChinaDepartment of Medical Imaging, Hangzhou Medical College, Hangzhou 310053, ChinaEngineering Research Center of Optical Instrument and System, Ministry of Education and Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaSchool of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaKey Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering, School of Physics and Astronomy, Yunnan University, Kunming 650500, ChinaKey Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering, School of Physics and Astronomy, Yunnan University, Kunming 650500, ChinaKey Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering, School of Physics and Astronomy, Yunnan University, Kunming 650500, ChinaJiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, ChinaKey Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201899, ChinaDy<sup>3+</sup>-doped CaF<sub>2</sub>-SrF<sub>2</sub> crystals with various Dy<sup>3+</sup> dopant concentrations were synthesized by multicrucible temperature gradient technology (MC-TGT). Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystals were fluorite structured and crystallized in cubic <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mi>m</mi><mover accent="true"><mn>3</mn><mo>¯</mo></mover><mi>m</mi></mrow></semantics></math></inline-formula> space group, as characterized by X-ray diffraction. The crystallographic site concentration was calculated from the measured density by Archimedes’ hydrostatic weighing principle. The optical transmission reached over 90% with a sample thickness of 1.0 mm. The Sellmeier dispersion formula was obtained following the measured refractive index in a mid-IR range of 1.7–11 μm. Absorption coefficients of 6.06 cm<sup>−1</sup> and 12.71 cm<sup>−1</sup> were obtained at 804 nm and 1094 nm in 15% Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal. The fluorescence spectra of 15 at.% Dy:CaF<sub>2</sub>-SrF<sub>2</sub> showed the strongest wavelength peak at 2919 nm with a full width at half maximum (FWHM) of 267 nm under an excitation wavelength of 808 nm. The fluorescence lifetimes were illustrated for different Dy<sup>3+</sup> dopant levels of 5%, 10% and 15%. The results indicate that the Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal is a promising candidate for compact mid-IR lasers.https://www.mdpi.com/2073-4352/11/8/907Dy:CaF<sub>2</sub>-SrF<sub>2</sub>crystal growthtemperature gradient technologymidinfrared crystalSellmeier dispersion formula |
| spellingShingle | Lihe Zheng Jianbin Zhao Yangxiao Wang Weichao Chen Fangfang Ruan Hui Lin Yanyan Xue Jian Liu Yang Liu Ruiqin Yang Haifeng Lu Xiaodong Xu Liangbi Su Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology Crystals Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal growth temperature gradient technology midinfrared crystal Sellmeier dispersion formula |
| title | Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology |
| title_full | Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology |
| title_fullStr | Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology |
| title_full_unstemmed | Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology |
| title_short | Mid-IR Optical Property of Dy:CaF<sub>2</sub>-SrF<sub>2</sub> Crystal Fabricated by Multicrucible Temperature Gradient Technology |
| title_sort | mid ir optical property of dy caf sub 2 sub srf sub 2 sub crystal fabricated by multicrucible temperature gradient technology |
| topic | Dy:CaF<sub>2</sub>-SrF<sub>2</sub> crystal growth temperature gradient technology midinfrared crystal Sellmeier dispersion formula |
| url | https://www.mdpi.com/2073-4352/11/8/907 |
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