Chemically Tuned Light Source With An Optical Pump

This article presents the latest results of rhodamine B and fluorescein solution emissions at different weight concentrations. The shift of an emitted central peak wavelength is observed to change in weight concentrations of active material in samples. By using only two active materials photoluminescence at a desired wavelength from the range 524 divided by 660nm can be achieved. All samples were excited sequentially by a laser source and two blue light-emitting diodes without significant changes in the emitted spectra.