Plasmonic metasurface (IMAGE)
Caption
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 causes the dye molecules to emit light very quickly after being excited by the incoming light. A schematic of the metasurface is shown in (a), and a scanning electron microscopy image of a 12-millimeter sample is shown in (b).
Credit
Maiken H. Mikkelsen, Duke University
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