Skip to Content
Find More Like This
Return to Search

Surface-PlasmonoDielectric-polaritonic devices and systems

United States Patent

June 25, 2013
View the Complete Patent at the US Patent & Trademark Office
There is provided a structure for supporting propagation of surface plasmon polaritons. The structure includes a plasmonic material region and a dielectric material region, disposed adjacent to a selected surface of the plasmonic material region. At least one of the plasmonic material region and the dielectric material region have a dielectric permittivity distribution that is specified as a function of depth through the corresponding material region. This dielectric permittivity distribution is selected to impose prespecified group velocities, v.sub.gj, on a dispersion relation for a surface polaritonic mode of the structure for at least one of a corresponding set of prespecified frequencies, .omega..sub.j, and corresponding set of prespecified wavevectors, where j=1 to N.
Karalis; Aristeidis (Boston, MA), Joannopoulos; John (Belmont, MA), Soljacic; Marin (Belmont, MA)
Massachusetts Institute of Technology (Cambridge, MA)
12/ 421,207
April 9, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was made with Government support under Grant No. DMR0819762 awarded by the National Science Foundation, Grant No. DE-FG02-99ER45778 awarded by the Department of Energy, and Grant No. W911NF-07-D-0004 awarded by the Army. The Government has certain rights in the invention.