High-sensitivity sensing film and surface plasmon resonance sensing detection system

The invention discloses a high-sensitivity sensing film and a surface plasmon resonance sensing detection system. The sensing film comprises a one-dimensional metallic photonic crystal layer and a graphene layer, wherein the one-dimensional metallic photonic crystal layer covers the graphene layer, and the graphene layer covers a part of a sample layer. According to the invention, since the high-sensitivity sensing film including the one-dimensional metallic photonic crystal layer and the graphene layer is used to replace conventional precious metals as a sensing film used for generating surface plasmon polaritons, the sensitivity of the surface plasmon resonance sensing system is greatly improved; and the surface plasmon resonance sensing system has the advantages of simple structure, easiness in implementation, no need for usage of traditional precious metals and reduction in production cost.