Researchers have successfully developed a tunable infrared filter made from graphene, which would allow a solider to change the frequency of a filter in infrared goggles simply by controlled mechanical deformation of the filter (i.e., graphene origami), and not by replacing the substance on the goggles used to filter a particular spectrum of colors.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/04/180424112931.htm
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