Abstract
In this work, dye-doped polymer gain media samples of rhodamine-B in an ethylene glycol solvent with different concentrations has been added in a mixture with methylmethacrylate and 2-hydroxy ethylmethacrylate at volume 1:1. Copolymer has been prepared and synthesized by the Conventional Thermal Polymerization Method (CTPM) using an oven, and by our novel method called the Gamma Irradiation Polymerization Method (GIPM) using Cobalt-60 (60Co). The absorption molar coefficients, absorption cross sections, fluorescence quantum yields, fluorescence life times, and emission cross sections were determined and calculated from the measured absorption and emission spectra. The efficiencies of the fabricated samples by both methods were measured and compared.