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IMAGE: Researchers created a new plasmonic metasurface that sandwiches fluorescent dye molecules between a gold film and 100-nanometer-wide silver cubes. When light hits this structure, it excites localized surface plasmons, which. view more
Credit: Maiken H. Mikkelsen, Duke University
WASHINGTON Researchers have created a new plasmonic metasurface that achieves record high light efficiency over the entire centimeter-scale metasurface. The advance makes the new nanostructured thin film practical for use in a variety of applications from light-based communication to fluorescence-based biosensing. The major obstacles for using plasmonic structures for practical applications is that they are either too inefficient or their nanoscale properties aren t easily scalable to larger sizes, said research team leader Maiken H. Mikkelsen from Duke University. We designed and optimized a plasmonic metasurface that overcomes both of these limitations.