Compounds characterized generally as imidazolylbenzimidazolyl-terminated alkylamino ethynyl alanine amino dial derivatives are useful as renin inhibitors for the treatment of hypertension. A laser is utilized to generate activated oxygen species. With reference to other systems the thermally conductive foam is positioned between a component to be heated and a heat source to increase an operating temperature. More particularly, the invention relates to a system comprising a disposable cartridge and an optics cup or cuvette having a tapered surface; wherein the walls are angled to allow for better coating and better striations of the light.