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futurity_sci_tech 00154.txt

#Detector could vastly improve night-vision goggles Monash University right Original Studyposted by Glynis Smalley-Monash on September 8 2014 Researchers have developed a light detector that could revolutionize chemical-sensing equipment and night-vision technology. The detector which is interconnected based on the carbon atoms in graphene can sense light over an unusually broad range of wavelengths including terahertz waves between infrared and microwave radiation where sensitive light detection is most difficult. e have demonstrated light detection from terahertz to near-infrared frequencies a range about 100 times larger than the visible spectrumsays Professor Michael Fuhrer of the School of Physics at Monash University. The research could lead to a generation of light detectors that could see below the surface of walls and other objects. etection of infrared and terahertz light has numerous uses from chemical analysis to night-vision goggles and body scanners used in airport security. he research is published in Nature Nanotechnology. Current technological applications for terahertz detection are limited as they need to be kept extremely cold to maintain sensitivity. Existing detectors that work at room temperature are bulky slow and expensive. Fuhrer says the new detector worked at room temperature and was already as sensitive as any existing room-temperature detector technology in the terahertz range but was also more than a million times faster. he combination of sensitivity and speed for terahertz detection is simply unprecedentedhe says. Source: Monash Universityyou are free to share this article under the Creative Commons Attribution-Noderivs 3. 0 Unported license o

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