Golden antennas and insanely fast lasers
Leitenstorfer's team's research included optical nano-antennas made from gold and an ultrafast laser capable of producing 100 million pulses a second. The design of the antenna allowed the scientists to concentrate the electric field of the laser pulse into an area of a width of just 6 nanometers. This allowed them to switch the electronics every roughly 100 attoseconds. The whole process will take less than half of the period of oscillation of the laser pulses electric field.

Super brother. But it's too bad it's gold. It will attract the attention of thieves. Thanks for information.