Conductive coating with infrared pass band

Transparent conductors find applications in electrodes for flat panel displays, electromagnetic shielding, optical filters, antennas embedded in windshields, transparent electrodes for light-emitting diodes and lasers. Shields transparent in the atmospheric spectral windows of (3- 5)μm or (10-12)μm are in demand for electromagnetic protection of infrared displays in thermo-imaging devices. We propose semiconductor/dielectric or metal/dielectric multilayers that can serve as shield against RF and microwave radiation, while being transparent in the mid-infrared spectral region.