Magneto-optical borogermanate glasses and fibers containing Tb3+
Abstract New glass compositions containing high concentrations of Tb3+ ions were developed aiming at the production of magneto-optical (MO) fibers. This work reports on the structural and MO properties of a new glass composition based on (100 − x)(41GeO2–25B2O3–4Al2O3–10Na2O–20BaO) − xTb4O7. Morphol...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-89375-1 |
| _version_ | 1818433602395832320 |
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| author | Douglas F. Franco Yannick Ledemi Wagner Correr Steeve Morency Conrado R. M. Afonso Sandra H. Messaddeq Younès Messaddeq Marcelo Nalin |
| author_facet | Douglas F. Franco Yannick Ledemi Wagner Correr Steeve Morency Conrado R. M. Afonso Sandra H. Messaddeq Younès Messaddeq Marcelo Nalin |
| author_sort | Douglas F. Franco |
| collection | DOAJ |
| description | Abstract New glass compositions containing high concentrations of Tb3+ ions were developed aiming at the production of magneto-optical (MO) fibers. This work reports on the structural and MO properties of a new glass composition based on (100 − x)(41GeO2–25B2O3–4Al2O3–10Na2O–20BaO) − xTb4O7. Morphological analysis (HR-TEM) of the sample with the highest concentration of Tb3+ ions confirmed the homogeneous distribution of Tb3+ ions and the absence of nanoclusters. All the samples presented excellent thermal stability against crystallization (ΔT > 100 °C). An optical fiber was manufactured by a fiber drawing process. The UV–Vis spectra of the glasses showed Tb3+ electronic transitions and optical windows varying from 0.4 to 1.6 μm. The magneto-optical properties and the paramagnetic behaviors of the glasses were investigated using Faraday rotation experiments. The Verdet constant (VB) values were calculated at 500, 650, 880, 1050, 1330, and 1550 nm. The maximum VB values obtained at 650 and 1550 nm for the glass with x = 18 mol% were -128 and − 17.6 rad T−1 m−1, respectively. The VB values at 500 and 1550 nm for the optical fiber containing 8 mol% of Tb4O7 were − 110.2 and − 9.5 rad T−1 m−1, respectively, while the optical loss at around 880 nm was 6.4 dB m−1. |
| first_indexed | 2024-12-14T16:23:42Z |
| format | Article |
| id | doaj.art-9976655d2d31433cbbba6a764fc90032 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-14T16:23:42Z |
| publishDate | 2021-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-9976655d2d31433cbbba6a764fc900322022-12-21T22:54:44ZengNature PortfolioScientific Reports2045-23222021-05-0111111610.1038/s41598-021-89375-1Magneto-optical borogermanate glasses and fibers containing Tb3+Douglas F. Franco0Yannick Ledemi1Wagner Correr2Steeve Morency3Conrado R. M. Afonso4Sandra H. Messaddeq5Younès Messaddeq6Marcelo Nalin7Institute of Chemistry, São Paulo State University (UNESP)Centre d’Optique, Photonique et Laser, Université LavalCentre d’Optique, Photonique et Laser, Université LavalCentre d’Optique, Photonique et Laser, Université LavalDepartment of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar)Centre d’Optique, Photonique et Laser, Université LavalInstitute of Chemistry, São Paulo State University (UNESP)Institute of Chemistry, São Paulo State University (UNESP)Abstract New glass compositions containing high concentrations of Tb3+ ions were developed aiming at the production of magneto-optical (MO) fibers. This work reports on the structural and MO properties of a new glass composition based on (100 − x)(41GeO2–25B2O3–4Al2O3–10Na2O–20BaO) − xTb4O7. Morphological analysis (HR-TEM) of the sample with the highest concentration of Tb3+ ions confirmed the homogeneous distribution of Tb3+ ions and the absence of nanoclusters. All the samples presented excellent thermal stability against crystallization (ΔT > 100 °C). An optical fiber was manufactured by a fiber drawing process. The UV–Vis spectra of the glasses showed Tb3+ electronic transitions and optical windows varying from 0.4 to 1.6 μm. The magneto-optical properties and the paramagnetic behaviors of the glasses were investigated using Faraday rotation experiments. The Verdet constant (VB) values were calculated at 500, 650, 880, 1050, 1330, and 1550 nm. The maximum VB values obtained at 650 and 1550 nm for the glass with x = 18 mol% were -128 and − 17.6 rad T−1 m−1, respectively. The VB values at 500 and 1550 nm for the optical fiber containing 8 mol% of Tb4O7 were − 110.2 and − 9.5 rad T−1 m−1, respectively, while the optical loss at around 880 nm was 6.4 dB m−1.https://doi.org/10.1038/s41598-021-89375-1 |
| spellingShingle | Douglas F. Franco Yannick Ledemi Wagner Correr Steeve Morency Conrado R. M. Afonso Sandra H. Messaddeq Younès Messaddeq Marcelo Nalin Magneto-optical borogermanate glasses and fibers containing Tb3+ Scientific Reports |
| title | Magneto-optical borogermanate glasses and fibers containing Tb3+ |
| title_full | Magneto-optical borogermanate glasses and fibers containing Tb3+ |
| title_fullStr | Magneto-optical borogermanate glasses and fibers containing Tb3+ |
| title_full_unstemmed | Magneto-optical borogermanate glasses and fibers containing Tb3+ |
| title_short | Magneto-optical borogermanate glasses and fibers containing Tb3+ |
| title_sort | magneto optical borogermanate glasses and fibers containing tb3 |
| url | https://doi.org/10.1038/s41598-021-89375-1 |
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