Text: Illuminating idea: Lab's T-light work may have uses in medicine, security By Dave Schleck, Daily Press November 15, 2002 You can't see it. But it could brighten the way for new tools in medicine and terrorism defense. A Jefferson Lab scientist has produced record amounts of an invisible kind of light that could someday detect everything from anthrax to guns to skin cancer. Scientists have known for more than a century about terahertz light, located on the light spectrum between television waves and visible rays. But until now, they've produced it only in small amounts. Gwyn Williams, a researcher of light at Jefferson Lab, led an experiment that generated terahertz rays 20,000 times stronger than previous attempts. http://www.jlab.org/news/articles/2002/Tlight.html

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