Transition intensities of trivalent lanthanide ions in solids: Extending the Judd-Ofelt theory - Archive ouverte HAL
Journal Articles Journal of Luminescence Year : 2021

Transition intensities of trivalent lanthanide ions in solids: Extending the Judd-Ofelt theory

Gohar Hovhannesyan
Vincent Boudon

Abstract

We present a modified version of the Judd-Ofelt theory, which describes the intensities of f-f transitions for trivalent lanthanide ions (Ln3+) in solids. In our model, the properties of the dopant are calculated with well-established atomic-structure techniques, while the influence of the crystal-field potential is described by three adjustable parameters. By applying our model to europium (Eu3+), well-known to challenge the standard Judd-Ofelt theory, we are able to give a physical insight into all the transitions within the ground electronic configuration, and also to reproduce quantitatively experimental absorption oscillator strengths. Our model opens the possibility to interpret polarized-light transitions between individual levels of the ion-crystal system.
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Dates and versions

hal-03364107 , version 1 (04-10-2021)

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Gohar Hovhannesyan, Vincent Boudon, Maxence Lepers. Transition intensities of trivalent lanthanide ions in solids: Extending the Judd-Ofelt theory. Journal of Luminescence, 2021, pp.118456. ⟨10.1016/j.jlumin.2021.118456⟩. ⟨hal-03364107⟩
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