Yb3+:(LuxY1-x)(2)O-3 mixed sesquioxide ceramics for laser applications. Part I: Fabrication, microstructure and spectroscopy

Year: 2021

Authors: Pirri A., Toci G., Patrizi B., Maksimov RN., Osipov VV., Shitov VA., Yurovskikh AS., Tikhonov EV., Becucci M., Vannini M.

Autors Affiliation: Istituto di Fisica Applicata “N. Carrara”, IFAC, Consiglio Nazionale delle Ricerche, CNR, Via Madonna del Piano 10C, I-50019 Sesto Fiorentino, FI, Italy; Istituto Nazionale di Ottica, INO, Consiglio Nazionale delle Ricerche, CNR, Via Madonna del Piano 10, I-50019 Sesto Fiorentino, FI, Italy; Institute of Electrophysics UrB RAS, Amundsen St. 106, Ekaterinburg 620016, Russia d Ural Federal University named after the first President of Russia B.N. Yeltsin, Mira St. 19, Ekaterinburg 620002, Russia; Dipartimento di Chimica “U. Schiff”, Universita di Firenze, Via della Lastruccia, 3-13, I-50019 Sesto Fiorentino, FI, Italy

Abstract: We report an in-depth investigation (fabrication, microstructure and spectroscopy) of Yb3+-doped mixed sesquioxide transparent ceramics (LuxY1-x)(2)O-3 with x = 0, 0.113 and 0.232. The ceramics were fabricated by vacuum sintering of nano-sized particles synthesized by CO2 laser co-evaporation of the corresponding solid targets with different Y/Lu balance. The effect of Lu3+ concentration on crystal structure and phase evolution of the nanopowders and microstructure, optical and spectroscopic properties of the sintered ceramics was investigated. The micro-Raman measurements with high spatial resolution revealed a homogeneous distribution of both yttrium and lutetium in the mixed composition. The optical transmission of 1.4 mm-thick ceramics was over 80% in the wavelength range of 500-1100 nm. Partial substitution of Y3+ cations for Lu3+ cations determines a small shift toward longer wavelengths and broadening of the Yb3+ main emission peaks at about 1030 and 1076 nm. This is the first extensive characterization of the spectroscopic properties of Yb:(Y,Lu)(2)O-3 compositional family in ceramic hosts. (C) 2021 Elsevier B.V. All rights reserved.


Volume: 869      Pages from: 159227-1  to: 159227-8

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: (Yb:Lu, Y)(2)O-3; Transparent ceramics; Microstructure; Raman spectroscopy, Lasers; Nanoparticles
DOI: 10.1016/j.jallcom.2021.159227