Infrared absorber based on Ti/ZnS composite multilayer film

摘要

In this paper, we proposed an infrared absorber based on multilayer film. Through the thickness resonance of ZnS dielectric layers and the loss properties of ultra-thin titanium film, a good absorption is achieved in the infrared band. The outermost ZnS is employed to reduce impedance mismatch and protects ultra-thin Ti film. This sample does not need in-plane microstructure design, which reduces the processing difficulty and can be prepared on large scales.