A Compatible Photonic Crystal Composite Thin Film for Infrared Protection and Anti-Laser Detection
A photonic crystal and composite film technology, applied in optics, optical components, instruments, etc., can solve the problems of single infrared protective coating and inability to achieve functional compatibility, and achieve improved battlefield survivability, long service life, and adaptability to a wide range of applications. Effect
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[0015] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments, wherein the methods are conventional methods unless otherwise specified, and the raw materials can be obtained from open commercial channels unless otherwise specified.
[0016] A photonic crystal composite film compatible with infrared protection and anti-laser detection, the photonic crystal composite film is composed of photonic crystal film stack I and photonic crystal film stack II;
[0017] The central wavelength of the photonic crystal film stack I is 3800nm, which is formed by alternating arrangement of Ge layers with high refractive index and ZnS layers with low refractive index, and the total number of layers is 8 layers; wherein, the thickness of the 4 Ge layers is equal, The thicknesses of the four ZnX layers are equal; the specific thicknesses of the Ge layer and the ZnS layer are determined according to the refractive index of the s...
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