Aluminum-based hybrid gratings for infrared spectral emissivity design

We use aluminum gratings to design emitters with predefined spectral response in the infrared. We create a reference library to investigate the relationship between the grating design parameters and their spectral properties. Next, we develop a search algorithm based on minimization of errors to select gratings from this library corresponding to emission peaks with desired spectral attributes. Finally, we discuss an approach for designing hybrid structures using these gratings to generate a few predefined target spectra.