第二种可能性则能应用在更加耗电的设备上。其原理是发射一道精确聚焦的红外激光线，击中光伏电池，由此能够将光束转换回电能。
A second possibility, for more power-hungry devices, is to fire a finely focused infrared laser beam at a photovoltaic cell, which converts the beam back to electrical energy.
至于激光雷达，电磁波是以红外激光束的形式发射的。
In the case of lidar, the waves are in the form of an infra-red laser beam.
在激光辅助添加制造过程中，他们发射了一个红外激光束，在基板表面上就形成了熔池。
During the laser-aided additive manufacturing process, the researchers fired a beam from an infrared laser to form a melt pool on the substrate surface.
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