Abstract:

This paper, starting from the recent theory of thin film optics and the mthod of optimization, first comes to several conclusions regarding multilayer e-anti-reflection coating design. Based on these conclusions, the performance of the anti-reflection coating with variable index layers is discussed; the monochromatic effects of the variable index layers, the calculating method, the influence of the distribution of index profile on the spectral performance of anti-reflection coating, and the compensation and utilization of the spectral effects of variable index are studied. This paper also introducesa method for the design and preparation of anti-reflection coating with little colour and low reflectance in the visible region, and new technologies such as integral control are presented too。