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Replication of patterned thin-film structures for use in plasmonics and metamaterials

United States Patent

February 3, 2015
View the Complete Patent at the US Patent & Trademark Office
Creation of Light and/or Surface Plasmons with Heated Metallic Films
The present invention provides templating methods for replicating patterned metal films from a template substrate such as for use in plasmonic devices and metamaterials. Advantageously, the template substrate is reusable and can provide plural copies of the structure of the template substrate. Because high-quality substrates that are inherently smooth and flat are available, patterned metal films in accordance with the present invention can advantageously provide surfaces that replicate the surface characteristics of the template substrate both in the patterned regions and in the unpatterned regions.
Norris; David J. (Zurich, CH), Han; Sang Eon (Cambridge, MA), Bhan; Aditya (Minneapolis, MN), Nagpal; Prashant (Los Alamos, NM), Lindquist; Nathan Charles (Vadnais Heights, MN), Oh; Sang-Hyun (Plymouth, MN)
Regents of the University of Minnesota (St. Paul, MN)
13/ 131,197
November 24, 2009
This work was supported by the U.S. Department of Energy (DE-FG02-06ER46438) and was also funded by NSF through the NNIN program and was also funded by an NIH Biotechnology Training Grant (T32-GM008347). The US Government may have certain rights to the invention.