3.5～12.5μm三波段宽带红外Ge窗口多层增透膜的研制

Design and Fabrication of Wide Three-Band Infrared Antireflection Coatings for Ge Window from 3.5～12.5 μm

介绍了利用三种材料Ge、ZnS和YbF3在Ge基片上制备3.5～12.5 μm三波段宽带增透膜的膜系设计、制备工艺及光学、机械性能测试结果.该元件可应用于空间红外遥感系统.

In this paper, three types of infrared coating materials Ge, ZnS and YbF3 are used to design and fabricate the wide band antireflection coatings of Ge window. Beginning with the discussion upon the choice of appropriate low-index material YbF3, the author also gives the material properties, design consideration, monitoring strategies, and experimental result of the sample product, as well as the optical and mechanical experimental result of the window, which proves it as a qualified element for space applications.