Waveguided random lasing in red-emitting-dye-doped organic-inorganic hybrid polymer thin films

► Waveguided random laser in hemicyanine-doped silsesquioxane/polymer thin films. ► Energy transfer from donor dyes enhances random laser efficiency. ► Random laser emission centered at 665 nm (LDS722) and 725 nm (LDS730). ► Random lasing thresholds at 100 kW/cm2.