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.

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。

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The MBL has an infrared countermeasures capability that provides laser jamming in all three key threat bands.

MBL具有一种红外干扰能力，可以在所有的三个关键威胁波段中提供激光干扰。

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The camera works by illuminating objects with a laser that emits a different infrared frequency for every single pixel, allowing them to custom-amplify a signal that would otherwise be too dim to see.

该相机的工作原理是：用一束激光照在物体上，每一个像素点都被不同红外频率的激光照着，以此来优化放大在其他情况下太弱而看不见的信号。

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It has also scanned the surface of the planet using Mola (Mars Orbiter Laser Altimeter), which beams an infrared laser pulse towards the surface of the Red Planet 10 times a second.

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In the researchers' new imaging system, a beam of infrared laser light is widely dispersed throughout a room.

ENGADGET: Infrared holography lets rescuers see people through walls, fire, walls of fire (video)

The device consists of a camera, infrared laser to measure distance and a microchip that interprets the data to track people in 3D.

BBC: Dundee University uses Xbox Kinect to control lasers