Abstract: Embodiments include a LIDAR scanning system. A laser is configured to emit pulses of light. A transmit reconfigurable-metasurface is configured to reflect an incident pulse of light as an illumination beam pointing at a field of view. This pointing is responsive to a first holographic beam steering pattern implemented in the transmit reconfigurable-metasurface. A receive reconfigurable-metasurface is configured to reflect a return of the illumination beam to an optical detector. This pointing is responsive to a second holographic beam steering pattern implemented in the receiving reconfigurable-metasurface. An optical detector includes an array of detector pixels. Each detector pixel includes (i) a photodetector configured to detect light in the return of the illumination beam and (ii) a timing circuit configured to determine a time of flight of the detected light. The optical detector is also configured to output a detection signal indicative of the detected light and the time of flight.