Sticky tape emits useful terahertz rays

Sticky tape emits useful terahertz rays


WILL sticky tape ever cease to amaze? Peeling it can generate terahertz radiation, raising the possibility of a cheaper alternative to lasers for medical imaging. Peeling sticky tape has already been shown to produce X-rays, so Joseph Horvat and Roger Lewis of the University of Wollongong in New South Wales, Australia, tried to see if it could create lower-frequency terahertz radiation. “We were rather pleasantly surprised to obtain a clear signal in our first attempt,” says Horvat. Strongly adhesive Scotch Magic 810 tape and weakly adhesive electrical tape both yielded strong terahertz signals, ranging from 0.1 to 10 terahertz,
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