Multi-Band Infrared Stealth Metasurface Design Based on Deep Learning
In modern warfare,infrared stealth of military objectives plays an important role in im-proving their survival and breakout capabilities.In this paper,aiming at the multispectral infrared stealth,i.e.,narrow-band high absorption at the active detection wavelength of near-infrared laser(1.54 μm),low emission in the two atmospheric window bands and taking into account the radia-tive heat dissipation requirements in the non-atmospheric window bands,we combine the rigorous coupled-wave analysis and deep learning methods to reversely design the Ge/Ag/Ge multilayer film circular hole metasurface structure.By analyzing the potential physical mechanisms and the emis-sion and absorption characteristics at different angles for the optimized structure parameters,the multi-band synergistic stealth is achieved.