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Nanoantenna Enhances Plasmonic Sensing

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BERKELEY, Calif., May 24, 2011 — An experimental demonstration of antenna-enhanced gas sensing at the single-particle level has been reported for the first time. By placing a palladium nanoparticle on the focusing tip of a gold nanoantenna, researchers with the US Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), in collaboration with researchers at the University of Stuttgart in Germany, clearly detected changes in the palladium's optical properties upon exposure to hydrogen. "We have demonstrated resonant antenna-enhanced single-particle-hydrogen sensing in the visible region and presented...Read full article

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