METHOD FOR MAKING CATALYST HIGHLY EFFICIENT

PROBLEM TO BE SOLVED: To execute a catalytic reaction on a surface or a catalyst in high- efficiency by inducing a strong electric field by exciting surface plasmon polariton on the surface of the catalyst having a prism on the surface. SOLUTION: In the surface plasmon induced on the surface of a material having a free electron and the surface plasmon polariton(SPP) being one kind of an elementary excitation in which light irradiating the maternal is coupled, the strength of the electric field of the material surface at the time of being excited reaches 100 times the strength of the electric field of an irradiating light. Then the catalytic reaction is executed at high-efficiency by using the prism (hemispherical prism) 1, inducing the SPP at an interface of the catalyst 3 and the prism with a light source 2 and generating the strong electric field of the SPP on the surface of the catalyst. In this case, a multilayered metal is preferably interposed between the catalyst 3 and the prism 1 preferably to induce the SPP at each interface, and a kind of the multilayered metallic film and its thickness and a shape of the prism 1 and its material are optimized to the kind of the catalyst 3 and a change of a wavelength of an incident light.