The attention intensity information is extracted as the control signal and a mapping between attention intensity and scattering pattern of the metasurface is established. As an example, we demonstrated a RMCM whose scattering pattern can be altered dynamically according to the user’s brain waves via Bluetooth.
Rather than DC voltage from power supply or AC voltages from signal generators, the metasurface is controlled by brainwaves collected in real time and transmitted wirelessly from the user. Here, we propose the concept of remotely mind-controlled metasurface (RMCM) via brainwaves. Nevertheless, most of existing PMs are wire-connected to users, manually-controlled and not real-time. One possible path is to employ brain signal collecting technologies together with emerging programmable metasurfaces (PM), whose functions or operating modes can be switched or customized via on-site programming or pre-defined software.
The power of controlling objects with mind has captivated a popular fascination to human beings.
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