Silica glasses with nanoparticles of copper compounds: spectroscopy properties and laser passive shutter application

摘要

Sol-gel glasses containing copper selenide nanoparticles and having absorption band at 1.1? 2.2 ? m can be used as saturable absorber passive shutter for Q-switching and mode-locking of the solid-state lasers operating in the wavelength range of 1.0? 1.5?m. The bleaching relaxation time of the glasses was measured to be 0.46? 1.4 ns in dependence on copper selenide stoichiometry.