Multilayer Al grid metasurface bionic layer /graphene stack structure for high-performance polarization detection

Abstract

The field of polarization detection is currently important, ensuring lossless detection of polarized light while maintaining a high level of integration presents a challenge. The current research consensus is to establish bionic multilayer structure to solve these problems, but current bionic multilayer research still has the problems of not realizing graphical detection and not stable enough. Building upon existing research in polarization detection structures, this paper proposes a novel Multilayer Al grid Metasurface Bionic Layer /Graphene Stack Polarization Detector (MAGD) to solve the problem. Inspired by the compound eye of insects, the MAGD utilizes a three-layered polarimetric sensing structure. This structure combines graphene and Al grid to form biomimetic structure to achieve simultaneous measurement of the multi-angular components of incident light at a single spatial point. Graphene is combined with quantum dots to improve photoelectric efficiency, and Al grid metasurface bionic layer are optimized to achieve multi-layer polarization sensitivity to mimic the insect compound eye structure. Furthermore, by combining the detection from multiple points, the MAGD can be used for graphical detection. This design offers a promising avenue for achieving more advanced polarization detection capabilities in the future and holds the potential for significantly improved performance compared to existing systems.