Optical limiting properties of Acridine dye solution and doped PMMA, Al2O3 nanoparticles using Nd-YAG laser

The optical limiting properties of three cases were studied, the Acridine dye solution , Acridine dye doped PMMA films and 5x10-4 Ml Acridine dye solution doped polymer with Al2O3 nanoparticles were measured using Q-switching Nd-YAG laser beam at 532 nm wavelength. The optical limiting behavior is investigated at different concentrations and weight ratio. The results were observed that the important parameters for optical limiting properties are the limiting threshold of PL (Limiting threshold) and Pclamping(limiting amplitude). They are inversely proportional to the concentration and weight ratio. From results noticed that Al2O3 nancomposites were the best for optical limting because they have PL (Limiting threshold) and Pclamping(limiting amplitude) small than Acridine dye solution also Acridine dye doped PMMA. In addition, limiting threshold and limiting amplitude decreased with increasing concentration or weight ratio.