Credit: Light: Science & Applications
a S-DNNs can be spatially multiplexed for separately estimating the azimuth and elevation angular interval of targets over a wide field-of-view. b Four-layer S-DNN achieves DOA estimation with angular resolution beyond the diffraction limit, which can be applied for detecting and tracking targets with emitters. c Reconfigurable S-DNN utilizes LC RIS with temporal multiplexing to achieve DOA estimation for low-latency communication. d The three-layer S-DNN with super-resolution DOA estimation results are utilized to establish real-time RIS-based communication links between a base station and users. e Device pictures of the passive and reconfigurable diffractive layers utilized for integrated photonic computing, sensing, and communication. f The conventional RIS-based communication system relies on the base station to process wireless signals and send user locations, substantially increasing the communication latency