1.06 µm emission of Nd3+-doped aluminium barium lithium phosphate glasses for near IR laser medium material
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Publication Details
Author list: Thongyoy P., Kedkaew C., Meejitpaisan P., Minh P.H., Keawmon T., Rajaramakrishna R., Kaewkhao J.
Publisher: Elsevier
Publication year: 2022
Volume number: 269
ISSN: 00304026
Languages: English-Great Britain (EN-GB)
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Abstract
Melt quenching was used to make aluminum barium lithium phosphate glasses doped with various amounts of Nd3+ ions. The absorption spectra of glasses showed twelve peaks and were increased with increasing of Nd2O3 concentrations. While the wavelength at 581 nm is the highest absorption. The emission spectra of Nd3+-doped glasses exhibited three dominant peaks at 901, 1066 and 1334 nm under exciting wavelength at 581 nm, it was related to the 4F3/2 → 4I9/2, 4I11/2 and 4I13/2 transitions, respectively. The wavelength at 1066 nm was observed that is the highest emission intensity. Because of the concentration quenching effect, the emission intensities accreted regarding concentration up to 1.0 mol%. After that, when it was higher than 1 mol%, the intensity decreased. The Ω2,Ω4andΩ6 were done by applying Judd-Ofelt theory to the absorption and emission results, which led to the calculation of the radiative transition probability and the stimulated emission cross-section. The JO parameters show Ω6>Ω2>Ω4 trend, it indicated more viscosity and rigidity of glasses. Glasses have had their stimulated emission cross-section determined. The results showed that Nd3+-doped aluminium barium lithium phosphate glass with a 1066 nm emission might be used as a near-infrared laser medium material. © 2022 Elsevier GmbH
Keywords
High peak power laser and Judd-Ofelt analysis, Neodymium, NIR laser materials
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