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| MIT mathematicians have developed a technique that quickly determines the ideal arrangement of millions of individual, microscopic features on a metasurface, to generate a flat lens that manipulates light in a specified way. The team designed a metasurface, at left, etched with millions of features. A zoomed-in image of the lens, right, shows individual features, each etched in a specific way so that, together, they produce a desired optical effect. Image: MIT. |
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