Nanophotonics for light detection and ranging technology
| Autor: | Hyeongdo Kim, Renato Juliano Martins, Junsuk Rho, Trevon Badloe, Patrice Genevet, Samira Khadir, Jaehyuck Jang, Ho-Youl Jung, Inki Kim, Jongun Kim |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
business.industry
Detector ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Biomedical Engineering Nanophotonics Bioengineering Ranging 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Frame rate 01 natural sciences 7. Clean energy Atomic and Molecular Physics and Optics 0104 chemical sciences Lidar Scalability Electronic engineering General Materials Science Electrical and Electronic Engineering Photonics Antenna (radio) 0210 nano-technology business |
| Zdroj: | Nature Nanotechnology |
| ISSN: | 1748-3395 |
| Popis: | Light detection and ranging (LiDAR) technology, a laser-based imaging technique for accurate distance measurement, is considered one of the most crucial sensor technologies for autonomous vehicles, artificially intelligent robots and unmanned aerial vehicle reconnaissance. Until recently, LiDAR has relied on light sources and detectors mounted on multiple mechanically rotating optical transmitters and receivers to cover an entire scene. Such an architecture gives rise to limitations in terms of the imaging frame rate and resolution. In this Review, we examine how novel nanophotonic platforms could overcome the hardware restrictions of existing LiDAR technologies. After briefly introducing the basic principles of LiDAR, we present the device specifications required by the industrial sector. We then review a variety of LiDAR-relevant nanophotonic approaches such as integrated photonic circuits, optical phased antenna arrays and flat optical devices based on metasurfaces. The latter have already demonstrated exceptional functional beam manipulation properties, such as active beam deflection, point-cloud generation and device integration using scalable manufacturing methods, and are expected to disrupt modern optical technologies. In the outlook, we address the upcoming physics and engineering challenges that must be overcome from the viewpoint of incorporating nanophotonic technologies into commercially viable, fast, ultrathin and lightweight LiDAR systems. |
| Databáze: | OpenAIRE |
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