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(Funded by the National Science Foundation)
When periodic arrays of metallic nanostructures are illuminated with light, each of the nanoparticles produces a strong response, which, in turn, results in enormous collective behaviors if all of the particles can interact. Scientists at The University of New Mexico have found that decreasing the density of nanoparticles in the array produces field enhancements that are not only larger, but extend farther away from the array.
