Characteristics of Upconversion Luminescence of CaF2:Er Powders Excited by 1.5-µm Laser Radiation
| Autor: | Mikhail N. Zharkov, A. S. Ermakov, Polina A. Ryabochkina, S. V. Gushchin, A. A. Lyapin, V. M. Kyashkin, S. V. Prytkov, A. V. Atanova |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Analytical chemistry Radiation Laser 01 natural sciences Atomic and Molecular Physics and Optics Photon upconversion Electronic Optical and Magnetic Materials Ion law.invention 010309 optics Wavelength law Excited state 0103 physical sciences Luminescence Excitation |
| Zdroj: | Optics and Spectroscopy. 128:200-206 |
| ISSN: | 1562-6911 0030-400X |
| Popis: | The characteristics of upconversion luminescence of CaF2:Er crystalline powders upon laser excitation of Er3+ ions to the 4I13/2 level at a wavelength of 1531.8 nm are studied. The upconversion luminescence energy yields for the spectral regions of 380–780 and 380–1100 nm are determined. It is found that upconversion luminescence of CaF2:Er powders with Er3+ concentrations of 0.5, 2, 4, 6, 8, 10, 11, 13, 15, and 17% is characterized by correlated color temperatures of 5100, 2142, 1726, 1738, 1773, 1757, 1762, 1765, 1735, and 1714 K, respectively. |
| Databáze: | OpenAIRE |
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