三维感测“眼睛”升级，我国科研人员发明新型“双模态”激光雷达

Core Viewpoint - Chinese scientists have successfully developed a new "dual-mode" LiDAR system that enhances the three-dimensional perception capabilities of autonomous vehicles, robots, and drones [1][4]. Group 1: Technology Development - The "dual-mode" LiDAR system was developed by a team from Huazhong University of Science and Technology in collaboration with Tsinghua University and Beijing Information Science and Technology University, and published in the top international optical journal "Light: Science & Applications" [1]. - Traditional LiDAR systems are categorized into scanning and flash types, with the former offering high precision but slow speed, while the latter provides fast speed but limited precision. The new system aims to combine the advantages of both [1][4]. Group 2: System Functionality - The core of the new system is a device called "hybrid cascaded translational metasurface," which consists of two layers of specially designed nano-lenses. By altering the polarization state of the incident laser, the system can switch between high-precision scanning mode and flash mode [1][2]. - The hardware allows the system to automatically switch modes based on actual needs, first using flash mode to quickly gather environmental information, then switching to scanning mode for detailed detection of specific areas [2]. Group 3: Implications and Future Applications - This technology successfully integrates the advantages of traditional scanning and flash LiDAR, ensuring high precision and long-distance detection while improving detection efficiency [4]. - The more efficient, flexible, and compact "dual-mode" LiDAR is expected to play a significant role in the fields of autonomous vehicles, intelligent robots, and drones, enhancing their ability to perceive the world [4].