Growth and characterization of new disordered crystals for the design of all solid state lasers

We examine crystals belonging to two wide families of compounds of general chemical formulae ABC3O7 and ABCO4 (A equals Ca, Sr, Ba; B equals Y, La-Gd; C equals Al, Ga) which appear to be promising active materials for the design of all-solid-state lasers. Inhomogeneous broadening of spectral lines influences weakly the extraction efficiency in the case of SrLaGa3O7:Nd and BaLaGa3O7:Nd but it is found to be a limiting factor controlling the performance of SrLaAlO4:Nd laser. Preliminary spectroscopic study indicates that chromium doped SrLaAlO4 and SrLaGaO4 may be promising active materials for the design of tunable infrared lasers.