Spectroscopic Proprieties of Crystals Mf₂ (M=Cd, Sr, Ba) Doped to Rare Earth Ions

Abstract

In the present work, we are interested by studying the spectroscopic properties for optical applications, mainly laser amplification, of MF₂ crystals, where M is an alkaline earth (Ba, Sr) or Cadmium (Cd) doped with rare earth ions (Tb³⁺, Er³⁺, Ho³⁺. So far, we present the absorption and emission properties and also the fluorescence dynamics at room temperature of visible and near infrared transitions of the Er³⁺ ion doping these matrices. We also use the formalism of Judd-Ofelt by use of absorption spectra recorded at room temperature in order to identify the spectroscopic properties inherent in all radiative transitions which can occur.

Keywords: rare earth, spectroscopic proprieties, absorption, Judd-Ofelt theory.