Abstract
Single photon light detection and ranging (LiDAR) has the advantages of high angle and distance resolution, great concealment, a strong anti-active jamming capability, small volume, and light mass, and has been widely applied in marine reconnaissance, obstacle avoidance, chemical warfare agent detection, and navigation. With the rapid development of metamaterials, the performance of a single photon LiDAR system would be improved by optimizing the core devices in the system. In this paper, we first analyzed the performance index of the single photon LiDAR and discovered the potential of metamaterials in improving the system performance. Then, the influence of metamaterials on the core devices of the single photon LiDAR were discussed, including lasers, scanning devices, optical lenses, and single photon detectors. As a result, we have concluded that through effective light field modulation, metamaterial technology might enhance the performance innovation of the single photon LiDAR.
Highlights
Inspired by how bats fly, Christian Schuesmaier invented the first radar in the world in 1904
light detection and ranging (LiDAR) based on single photon detectors, i.e., single photon LiDAR, has gradually emerged and developed rapidly with the development of single photon detection technologies
H igher photon detection efficiency (PDE) can be achieved for single photon avalanche photodiode (SPAD) integrated with metamaterials, which promotes higher signal-to-noize ratio (SNR) for the single photon LiDAR
Summary
Inspired by how bats fly, Christian Schuesmaier invented the first radar in the world in 1904. Compared with the conventional microwave radar, LiDAR has the advantages of higher angle and distance resolution, greater concealment, stronger anti-active jamming capabilities, better low-altitude detection performance, smaller volume, and lighter mass. With higher detection limit distance and resolution, the single photon LiDAR can achieve multidimensional data, such as azimuth-pitch angle-distance, range-speed-intensity, and display the data in the form of images to obtain radiation geometric distribution images, range-gate images, and velocity images, which has wide applications. It is an important means of reconnaissance [1].
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