Author(s): Pankaj K. Jha, Xingjie Ni, Chihhui Wu, Yuan Wang, and Xiang Zhang
A proposed metasurface made of tiny gold antennas could act as either a flat mirror or a concave, focusing mirror, depending on the radiation pattern of the source, which could lead to new ways to control quantum systems.

[Phys. Rev. Lett. 115, 025501] Published Mon Jul 06, 2015