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11:14

Ultra-thin Detector Captures Unprecedented Range of Light

Ultra-thin Detector Captures Unprecedented Range of Light

New research at the University of Maryland could lead to a generation of light detectors that can see below the surface of bodies, walls, and other objects. Using the special properties of graphene, a two-dimensional form of carbon that is only one atom thick, a prototype detector is able to see an extraordinarily broad band of wavelengths. Included in this range is a band of light wavelengths that have exciting potential applications but are notoriously difficult to detect: terahertz waves, which are invisible to the human eye

A research paper about the new detector was published online Sept. 7, 2014 in the journal Nature Nanotechnology. Lead author Xinghan Cai, a UMD physics graduate student, said a detector like the researchers’ prototype “could find applications in emerging terahertz fields such as mobile communications, medical imaging, chemical sensing, night vision and security.” The light we... More »

 

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