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A Rainbow for the Palm of Your Hand

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BUFFALO, N.Y., Feb. 27, 2012 — A new kind of polymer that is cheap and easy to make reflects many different wavelengths of light when viewed from a single perspective and could form the basis of handheld multispectral imaging devices. A rainbow-colored grating about 25 mm wide is shown under sunlight. Enlarged microscope images show the graded surface, with the black bars indicating a length of 10 µm. (Image: University at Buffalo) “Such portable technology could have applications in a wide range of fields from home improvement, like matching paint colors, to biomedical imaging, including analyzing...Read full article

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