Optical studies of Er(DBM)3Phen containing methyl methacrylate solution and poly(methyl methacrylate) matrix

From optical absorption spectra and using the Judd–Ofelt theory, the phenomenological parameters, Ω2, Ω4 and Ω6 of Er(DBM)3Phen containing methyl methacrylate (MMA) solution and solid poly(methyl methacrylate) (PMMA) matrix were obtained. The polymer chains in the sold matrix showed a significant influence on the hypersensitive transition 4I15/2→2H11/2. The calculated radiative lifetime and stimulated emission cross section of 4I13/2→4I15/2 transition revealed that it is promising for Er(DBM)3Phen containing PMMA to be used in rare earth containing polymer-based optical devices.