University of Kashan Journal of Nanostructures 2251-7871 Articles in Press 2023 09 14 The study of the optical properties of A Rhodamine 110 and Rhodamine B Organic Laser Dyes Mixture doped with nanoparticles 113935 EN Rusul K Mahmood Department of Physics, College for education for pure science, University of Babylon Talb M Abbas Department of Physics, College for education for pure science, University of Babylon Journal Article 2023 05 18 Abstract: This research has focused on the effect of Adding methanol solution and ethanol solution to rhodamine mix dye with different concentrations, the linear properties (permeability, absorbance) of Rhodamine mix dye were studied as it was dissolved in ethanol and methanol to prepare solutions with concentrations (0.00001, 0.000003, 0.00005, 0.00007) and at room temperature. The absorbance A of Rhodamine mix dye with ethanol was calculated for the above concentrations, respectively, as well as the permeability T was calculated. Also, the absorbance A of Rhodamine mix dye with ethanol was calculated and the transmittance T was calculated for the above concentrations, respectively, to obtain curves and compare between them. The absorbance A of Rhodamine mix dye with ethanol was calculated for the above concentrations, respectively, as well as the permeability T was calculated. Also, the absorbance A of Rhodamine mix dye with ethanol was calculated and the transmittance T was calculated for the above concentrations, respectively, to obtain curves and compare between them.