Surface plasma resonance high-refractive-index sensor based on porous aluminum membrane structure and application thereof

The invention relates to a surface plasma resonance high-refractive-index sensor based on a porous aluminum membrane structure. The surface plasma resonance high-refractive-index sensor comprises a quartz waveguide, a porous metal aluminum membrane layer arranged on the upper surface of the quartz waveguide, an incidence light source and a detector. The porous metal layer structure is used as a sensing structure, so that the surface plasma resonance strength is remarkably enhanced, and the sensitivity of the sensor is greatly improved. The porous structure forms a micro-nano sensing structure which can be simultaneously applied to the surface plasma resonance biological sensor monitoring a high refractive index and a low refractive index.