Matsuoka Yohei, Mathonnèire Sylvain, Peters Sven, Masselink W Ted
Appl Opt. 2018 Mar 1;57(7):1645-1649. doi: 10.1364/AO.57.001645.
We describe a design concept for broadband anti-reflection coatings for the mid-infrared that allows thinner film thickness and characterize its properties in the mid-infrared range from 7 μm to 12 μm. Two demonstrator coatings comprising zinc sulfide, yttrium fluoride, and germanium, all of which are deposited by electron beam evaporation on indium phosphide substrates, are optimized for the 7-12 μm and the 10-12 μm ranges. They exhibit less than 1.0% reflection over the target wavelength ranges with notably thin coating thickness.
我们描述了一种用于中红外波段的宽带抗反射涂层的设计概念，该概念可实现更薄的膜厚，并对其在7微米至12微米的中红外范围内的特性进行了表征。两种由硫化锌、氟化钇和锗组成的演示涂层，均通过电子束蒸发沉积在磷化铟衬底上，针对7 - 12微米和10 - 12微米波段进行了优化。它们在目标波长范围内的反射率低于1.0%，且涂层厚度显著较薄。
