A variety of ultrathin nanomechanical diffraction gratings that have been fashioned from the “wonder material” graphene have been created by an international team of researchers. The team wanted to reduce the thickness of such gratings to the ultimate physical limit – that of a single atom. The researchers say that their graphene gratings are 10 times thinner than previous beam splitters for atoms, molecules or clusters, and are even four orders of magnitude thinner than the width of a typical laser grating……….
http://nanotechweb.org/cws/article/tech/62392
