Preparation and spectroscopic properties of nanostructured glass-ceramics containing Yb3+, Er3+ ions and Co2+-doped spinel nanocrystals |
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| Institution: | 1. High Power Laser Components R&D Center, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 390 Qinghe Road, Jiaing, Shanghai 201800, China;2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China;1. Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, 522510, A.P., India;2. Faculty of Physics, Opole University of Technology, 75 Ozimska Str., Opole, 45370, Poland;3. Department of Physics, Kakani Venkata Ratnam College, Nandigama, 521185, A.P., India;1. Research Network Łukasiewicz, Institute of Electron Technology, Kraków Division, ul. Zabłocie 39, 30-701, Kraków, Poland;2. Military University of Technology, Institute of Optoelectronics, ul. gen. W. Urbanowicza 2, 00-908, Warszawa, Poland;3. Warsaw University of Technology, Institute of Radioelectronics and Multimedia Technology, ul. Nowowiejska 15/19, 00-665, Warszawa, Poland;1. Laboratory of Innovative Technologies, LTI, ENSA–Tangier, University Abdelmalek Essaâdi, Tangier, Morocco;2. CNR-IFN, Istituto di Fotonica e Nanotecnologie, CSMFO Lab and FBK Photonics Unit, Via alla Cascata 56/C, 38123 Povo (Trento), Italy;3. Institut des Molécules et Matériaux du Mans, UMR 6283, Equipe Fluorures, Université du Maine, Av. Olivier Messiaen, 72085 Le Mans cedex 09, France;4. Meridionale Impianti SpA, Via Senatore Simonetta 26/D, 20867 Caponago (MB), Italy;5. Department of Molecular Sciences and Nanosystems, INSTN and Centro di Microscopia Elettronica “Giovanni Stevanato”, Università Ca’ Foscari Venezia, via Torino 155/b, 30172 Mestre (Venezia), Italy;6. Institute of Low Temperature and Structure Research, PAS, ul. Okolna 2, 50-950 Wroclaw, Poland;7. Veneto Nanotech, Laboratorio Nanofab, Via delle Industrie 5, 30125 Marghera (Venezia), Italy;1. Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan;2. Kyushu Institute of Technology, 2-4 Hibikino, Wakamatsu-ku, Kitakyushu 808-0196, Japan |
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| Abstract: | Transparent glass-ceramics with Yb3+, Er3+ ions in glass matrix and tetrahedral Co2+-doped MgAl2O4 nanocrystals were synthesized. XRD patterns and FESEM micrograph of the glass-ceramics showed that MgAl2O4 nanocrystals (sizes of 10–20 nm) are uniformly dispersed in SiO2 glass matrix. Absorption and emission spectra of the glass-ceramics indicated that Yb3+, Er3+ remain in SiO2 glass matrix, while Co2+ occupied tetrahedral sites in MgAl2O4 nanocrystals, and can function as saturable absorber for Er3+. Transparent Co2+, Yb3+, Er3+ co-doped glass-ceramics possesses the spectral requirements and should be a potential laser material used for self-Q-switched microchip laser operating at 1.5–1.6 μm. |
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