Researchers from the Institute of Materials Research and Engineering, a collaboration between A-STAR in Singapore and Imperial College in London, have come up with a new way to create electromagnetic Teraherts waves (T-rays). The new technology can make T-rays into a stronger, more directional beam than current methods. This could allow T-ray devices to become much smaller and cheaper in the future. The results of their study were published in Nature Photonics.
Current T-ray imaging devices, like airport full-body scanners, are very large and expensive, and consume large amounts of energy as well. A portable T-ray scanning device could in the future make a medical tricorder possible, as T-rays can detect certain biological processes, such as changes in blood flow. As every molecule has a unique signature in the THz range, T-rays can sense for specific molecules as well.
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