Spectroscopic studies of Yb³⁺-doped rare earth orthosilicate crystals

Abstract

Infrared transmission and Raman scattering have been used to study Raman active phonons and crystal-field excitations in Yb3+-doped yttrium, lutetium and scandium orthosilicate crystals (Y2SiO5 (YSO), Lu2SiO5 (LSO) and Sc2SiO5 (SSO)), which belong to the same C2h6 crystallographic space group. Energy levels of the Yb3+ ion 2F5/2 manifold are presented. In the three hosts, Yb3+ ions experience high crystal field strength, particularly in Yb:SSO. Satellites in the infrared transmission spectra have been detected for the first time in the Yb3+-doped rare earth orthosilicates. They could be attributed to perturbed Yb3+ sites of the lattices or to magnetically coupled Yb3+ pairs.

High-resolution optical spectroscopy and magnetic properties ofYb3+inY2SiO5Welinski1, Ferrier2, Afzelius3 et al. 2016Phys. Rev. B414391View full textAdd to dashboardCite

“…On one hand the low doping concentration prevents energy transfers between Yb 3+ ions and to quenching centers. On the other hand, the energy gap between the 2 F 7/2 and 2 F 5/2 multiplets (≈ 10000 cm −1 ) is much larger than the Y 2 SiO 5 phonon cut-off frequency (≈ 960 cm −1 [40]) so that multiphonon relaxation is negligible. …”

Thermal quenching of luminescence and isovalent trap model for rare‐earth‐ion‐doped AlN

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“…9), as well as the data obtained in Raman studies on Y 2 SiO 5 crystal and its isostructural relatives (see, e.g. [51,58] …”