中文说明：
计算多层膜结构的透射率。可以计算各种偏振态，各层膜材料的折射率和厚度及波长等可以自己设置。
English Description：
The transmittance of multilayer structure is calculated. Various polarization states can be calculated, and the refractive index, thickness and wavelength of each layer can be set by oneself.