Plasmonic Structures, Methods for Making Plasmonic Structures, and Devices Including Them
AssigneeArizona Board of Regents, a body Corporate of the State of Arizona acting for and on behalf of Arzon
InventorsMichael Kozicki, Minghan Ren
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Abstract
The present invention relates generally to plasmonic structures, methods for making them, and devices including them. In one aspect, a plasmonic structure includes a plurality of metal particles disposed on a substrate; and one or more metal structures electrically coupled to and disposed on a surface of each of the plurality of metal particles. The metal structures have a structure that is different than the structure of the metal particles. The metal structures can be grown, for example, by electrodeposition on the metal particles. Growth of such metal structures can tune the response of the plasmonic structure.
Claims25
A plasmonic structure comprising:
- a substrate;
- a plurality of metal particles disposed on the substrate;
- and
- one or more metal structures electrically coupled to and disposed on a surface of each of the plurality of metal particles, the metal having a structure different from the structure of the metal particles.
A method for making a plasmonic structure, the method comprising:
- providing a substrate having disposed thereon a plurality of metal particles;
- providing an anode and a cathode and disposing a liquid on the surface of the substrate, such that the liquid is in electrical contact with the anode, the cathode and the plurality of metal particles;
- and
- applying a bias voltage across the metal particles and the anode sufficient to grow one or more metal structures electrically coupled to and disposed on each of the plurality of metal particles.
Dependencies are inferred from the claim text.