Lasers for Scanners Uh sir, you're not supposed to have that TriStar PicturesFrom Popular Science:
A new way to tune the width of terahertz quantum cascade lasers heralds a breakthrough in airport scanning and much more.
If Superman saw in terahertz radiation, he could do more than just peer through clothes and the human body. The Man of Steel might also be able to identify the chemical difference between a benign powder or an explosive tucked away inside a vial within a suitcase -- assuming that he could somehow tune his vision.
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My Comment: Such tech will completely revolutionize how airport security is done .... maybe.
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