New system uses two-dimensional structures to guide plasmonic waves at ultrashort wavelength, offering a new platform for memory and computer chips.
Schematics of a ferroelectric-graphene-ferroelectric nanostructure. Different domains of ferroelectrics can define densely packed waveguide patterns on graphene. Terahertz plasmons at ultrashort wavelength can flow on these waveguides. Graphic: Courtesy of Qing Hu