6、MATLAB仿真程序,在100μm~400μm波段进行仿真,并与实际测得的透过率进行对比,得出三台阶结构与三层增透膜结构相同,都具有三个波峰位置。关键词:太赫兹,三台阶亚波长结构,等效介质理论,严格耦合波理论,多掩膜层IABSTRACTABSTRACTSubwavelength structure meansbinarythe optical element whose size is smaller than the incident wavelength. When the size of multilayer subwavelength structure is much smaller
7、 than the incident wavelength,every layer of structure is similar to the antireflection coating that on the surface of traditional optical elements. Through the calculation and simulationof the period