Directing light at the nanoscale

Nature News: If quantum computing networks are ever to become a reality, physicists must find a way to direct and harness the light emitted in quantum experiments without using cumbersome apparatus.

Now Holger Hofmann, at the Department of Quantum Matter at Hiroshima University in Japan, and his colleagues have developed a way to control the direction of light on the nanoscale. Their technique is based on the workings of the Yagi-Uda antenna commonly used to transmit and detect shortwave radio waves.