Theoretical Analysis And Application Of Low-dimensional Photonic Crystal Structure In Infrared Stealth

Photonic crystal stealth technology is a hot research field in various countries,and has excellent application prospects.By studying photonic crystals,we design the structural materials which can perfectly reflect the light waves in a specific large frequency range.Considering the properties of photonic crystals,three dimensions of photonic crystals are applied to the stealth technology of infrared electromagnetic waves.The one-dimensional photonic crystal structure is relatively easy to manufacture with low cost.It is difficult to fabricate two-dimensional and three-dimensional photonic crystal structures with high precision and periodic structure.Above is the main reason why one-dimensional photonic crystal structure is adopted in this paper.Water based materials are used in material selection,which is environmentally friendly.The simulation results of two-dimensional and three-dimensional photonic crystals show that they also have excellent stealth performance.The work details and conclusions as below:(1)This paper discusses the current situation,classification and development trend of stealth technology.The concept and properties of photonic crystal are reviewed in detail,as well as the research progress of infrared electromagnetic wave stealth in the field of photonic crystal.(2)The characteristics of one-dimensional photonic crystal are analyzed and calculated in detail from both theoretical and simulation aspects.The reflectivity and transmissivity of five one-dimensional photonic crystal structures are discussed respectively.The angle adaptability and band gap characteristics of one-dimensional coatings with good reflective properties are analyzed in detail.It has excellent stealth performance compared with a single coating without photonic crystal structure.(3)Starting from the study of one-dimensional coating manufacturing process,the water-based coating with the best performance was selected.It is found that the one-dimensional photonic crystal coating has stable stealth efficiency in the infrared wave band by analyzing the dielectric test,morphology analysis,reflection stealth performance test and probationary stability.(4)The application of two-dimensional photonic crystal in infrared electromagnetic wave stealth is analyzed.The reflection efficiency of the silicon cylinder triangular photonic crystal structure is simulated and calculated.After selecting the excellent structure,the angle adaptability and band gap characteristics are further analyzed.This paper introduces the application of three-dimensional photonic crystal in infrared electromagnetic wave stealth,and analyzes the structure and band gap characteristics ofthe woodpile crystal,inverse opals and spheres in a diamond lattice respectively.The reflection performance,angle adaptability and band gap characteristics of the woodpile crystal are simulated in detail,which shows the excellent stealth performance.(5)In summary,this paper is based on the theoretical analysis and application of low-dimensional photonic crystal technology in infrared stealth.And It has very good development prospects.