August 6, 2013
Molecules could soon be “scanned” in a fashion similar to imaging screenings at airports, thanks to a detector developed by Univ. of Pittsburgh physicists. The detector, featured in a recent issue of Nano Letters, may have the ability to chemically identify single molecules using terahertz radiation — a range of light far below what the eye can detect. “Our invention allows lines to be ‘written’ and ‘erased’ much in the manner that an Etch A Sketch toy operates,” says study coauthor Jeremy Levy, professor in the Department of Physics and Astronomy within the Kenneth P. Dietrich School of Arts and Sciences.
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