Specialists from the Chinese Air Force University of Engineering, Shanghai Jiao Tong University and the National University of Singapore have developed a technology that will allow a person to non-contactly control a programmable metasurface with the power of thought.
Metasurfaces are two-dimensional analogues of metamaterials, which are designed in such a way as to have properties that are not found in naturally occurring materials. Their parameters change when exposed to electromagnetic waves.
EEG sensors were used to read data from the operator’s brain, which recorded delta, theta, alpha, beta and gamma waves, and then converted them into commands for a computer and transmitted to metasurfaces using Bluetooth. With proper concentration of attention on the metasurface, a certain pattern arose. Note that similar experiments were carried out earlier, but then the transmission was not over the radio channel, but over wires.
Scientists believe that such technology will find application in health monitoring systems, smart sensors and IoT devices. It will also allow you to literally control electronics with the power of thought.
Previously, metamaterials have already been proposed to be used in AR and VR headsets.