Abstract: A process for doping laser dyes into plastic hosts is disclosed. This process allows the control of the doping profiles in order to achieve profiles, other than uniform, necessary for effective laser mode control, volumetric pumping, and stable resonators and oscillations during transverse pumping. In addition to the above-stated attributes, this process enables the production of dye impregnated plastics which lase at extended light wave lengths.Dye impregnated plastics, prepared in accordance with this process, exhibit electro-optical characteristics previously unattainable with plastics prepared via conventional prior art processes.