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Infrared nanoantenna apparatus and method for the manufacture thereof

United States Patent

June 10, 2014
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
An exemplary embodiment of the present invention is a photodetector comprising a semiconductor body, a periodically patterned metal nanoantenna disposed on a surface of the semiconductor body, and at least one electrode separate from the nanoantenna. The semiconductor body comprises an active layer in sufficient proximity to the nanoantenna for plasmonic coupling thereto. The nanoantenna is dimensioned to absorb electromagnetic radiation in at least some wavelengths not more than 12 .mu.m that are effective for plasmonic coupling into the active layer. The electrode is part of an electrode arrangement for obtaining a photovoltage or photocurrent in operation under appropriate stimulation.
Peters; David W. (Albuquerque, NM), Davids; Paul (Albuquerque, NM), Leonhardt; Darin (Albuquerque, NM), Kim; Jin K. (Albuquerque, NM), Wendt; Joel R. (Albuquerque, NM), Klem; John F. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
13/ 871,708
April 26, 2013
This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.