6．4-15μm宽带增透膜的设计与制作

DESIGN AND FABRICATION OF 6.4～15μm BROADBAND ANTIREFLECTION COATINGS

红外增透薄膜在航天遥感中有着重要作用．使用了Ge、ZnS、YF3 3种材料，采用Refinement计算机辅助设计的方法，在Ge透镜上研制了6．4～15μm的长波红外增透膜．结果表明：所研制的红外增透膜性能优于光机系统的要求，并在15μm处的透过率达到79％．

Infrared antireflection coatings are indispensable to space -borne remote sensing system. An antireflection coating on the surface of Ge lens,which had a broadband in the spectral range of 6.4 - 15μm,was designed and fabricated by means of refinement design method and using Ge ,ZnS and YF3. The results shows that the performance of our coating exceeds that required by the remote sensing systems, and the coating has a transmission of 79% at 15μm.