Thin and ultra-fast photodetector sees the full spectrum

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Artist’s impression of the photodetector device created by RMIT University researchers.

 Researchers have developed the world’s first photodetector that can see all shades of light, in a prototype device that radically shrinks one of the most fundamental elements of modern technology.

Photodetectors work by converting information carried by light into an electrical signal and are used in a wide range of technologies, from gaming consoles to fibre optic communication, medical imaging and motion detectors. Currently photodetectors are unable to sense more than one color in the one device.

This means they have remained bigger and slower than other technologies, like the silicon chip, that they integrate with.

The new hyper-efficient broadband photodetector developed by researchers at RMIT University is at least 1,000 times thinner than the smallest commercially available photodetector device.

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