The nanostructures from Katja Höflich’s HZB team are shaped like corkscrews and made of silver. Mathematically, such a nano antenna can be regarded as an one-dimensional line that forms a helix, characterized by parameters such as diameter, length, number of turns per unit length, and handedness.
Click here for original story, Save time using maths: Analytical tool designs corkscrew-shaped nano-antennae
Source: Phys.org