Infrared holography lets firefighters see through fire and smoke

fire camera (optics express)

Seeing behind smoke and flames is tough to do, but it’s crucial for emergency responders like firefighters, who need to be able to tell if people are inside a burning building. To solve the problem, researchers at Italy’s National Institute of Optics have come up with a technique that one-ups conventional infrared camera technology by ditching an optical lens in favor of a laser, using infrared light to build a clear picture of what’s happening inside. The results were published in Optics Express.

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