Extension of Judd-Ofelt theory: Application on Eu${}^{3+}$, Nd${}^{3+}$ and Er${}^{3+}$

Gohar Hovhannesyan, Vincent Boudon, Maxence Lepers

We present a modified version of the Judd-Ofelt theory, which describes the intensities of f-f transitions for trivalent lanthanide ions (Ln${}^{3+}$) in solids. In our model, the pr…