Researchers have developed a light detector which could revolutionise chemical sensing and night
vision technology.
In the latest issue of the journal Nature Nanotechnology, a team of researchers at Monash University, the University of Maryland in the US and the US Naval Research Laboratory have created a light detector based on graphene, a single sheet of interconnected carbon atoms.
The detector can detect light over an unusually broad range of wavelengths, including terahertz waves, which are between infrared and microwave radiation where sensitive light detection is most difficult.
Professor Michael Fuhrer at Monash says the research could lead to a generation of light detectors which could see below the surface of walls and other objects.
“We have demonstrated light detection from terahertz to near-infrared frequencies, a range about 100 times larger than the visible spectrum,” Professor Fuhrer says.
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