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arXiv · 2106.02502

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

Gohar Hovhannesyan·Vincent Boudon·Maxence Lepers
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Abstract

We present a modified version of the Judd-Ofelt theory, which describes the intensities of f-f transitions by trivalent lanthanide ions (Ln$^{3+}$) 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 (Eu$^{3+}$), 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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Gohar Hovhannesyan, Vincent Boudon, Maxence Lepers. 2021-06-04. Transition intensities of trivalent lanthanide ions in solids: Revisiting the Judd-Ofelt theory. https://doi.org/10.1016/j.jlumin.2021.118456

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