▎ 摘　　要

NOVELTY - The device has a medium layer located between a metal antenna and a metal reflecting layer to form a metal-medium-metal reflective antenna structure and obtain surface-enhanced infrared spectrum performance of the device in an infrared band of a graphene film. A metal nano-gap is formed between metal nano-particles and the metal antenna. The metal nano particles excites lower wavelength of a visible light to generate local surface plasmon to produce a strong local electric field around the metal nano-particles in a graphene nano-gap such that the metal nano- particles is connected with the metal antenna to improve surface-enhanced Raman spectrum performance of the device. A dielectric layer is made of infrared transparent material that is selected from one of aluminum oxide, potassium bromide, magnesium fluoride, calcium fluoride, barium fluoride, silver chloride, zinc selenide, silicon dioxide and a diamond-like Carbon film. USE - Metal graphene multilayer resonance enhanced Raman infrared dual-spectrum device. ADVANTAGE - The device has wider application range, and increases enhanced band width and enhancement factor during large area process and reduces cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a metal graphene multilayer resonance enhanced Raman infrared dual-spectrum device preparing method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a metal graphene multilayer resonance enhanced Raman infrared dual-spectrum device. '(Drawing includes non-English language text)'