Continuously tuned (Tm0.05Sc0.252Y0.698)(2)O-3 ceramic laser with emission peak at 2076 nm
Authors: Pirri A., Maksimov R.N., Shitov V.A., Osipov V.V., Sani E., Patrizi B., Vannini M., Toci G.
Autors Affiliation: Istituto di Fisica Applicata “Carrara”, Consiglio Nazionale delle Ricerche, CNR-IFAC, Via Madonna del Piano 10C, Sesto Fiorentino, 50019, FI, Italy; Institute of Electrophysics UrB RAS, Amundsen St. 106, Ekaterinburg, 620016, Russian Federation; Ural Federal University named after the first President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg, 620002, Russian Federation; Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, CNR-INO, Largo Enrico Fermi, 6, Florence, 50125, Italy; Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche, CNR-INO,Via Madonna del Piano 10C, Sesto Fiorentino, 50019, FI, Italy
Abstract: We report on the first laser action of a (Tm0.05Sc0.252Y0.698)2O3 ceramic sample, which was made by solidstate vacuum sintering of laser-ablated mixed sesquioxide nanoparticles. Pumped at 793 nm in quasi-CW mode, it delivers 1.24 W with a slope efficiency of 9.45% at 2076 nm. We have measured the absorption spectra at several temperatures, from 93 K to 293 K, calculating the absorption coefficients by Lambert-Beer formula. Moreover, emission cross sections were calculated by Fuchtbauer-Ladenburg starting from the fluorescence spectra measured at room temperature. Spectroscopic data where compared with those obtained by (Tm0.05Y0.95)2O3 fabricated with the same method. Finally, the ceramic tunability was explored finding a tuning range as broad as 181 nm (from 1927.5 nm to 2108.5 nm).
Journal/Review: JOURNAL OF ALLOYS AND COMPOUNDS
Volume: 889 Pages from: 161585-1 to: 161585-7
More Information: This work was supported in part by the Joint Bilateral Agreement National Research Council (CNR), Italy/Russian Foundation for Basic Research (RFBR), Russia, 2018-2020 (RFBR Grant No. 18-53-7815 Ital_t, CNR project SAC.AD002.020.016).KeyWords: Tm; (ScxY1-x)(2)O-3; Thulium lasing properties; Tm-based transparent ceramics; Low temperature absorption spectra; Optical propertiesDOI: 10.1016/j.jallcom.2021.161585