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US 8,274,731 B2Granted
Magnetic control of surface states
AssigneeThe Invention Science Fund I, LLC
InventorsJeffrey A. Bowers, Peter L. Hagelstein, Roderick A. Hyde, Muriel Y. Ishikawa, Jordin T. Kare, Clarence T. Tegreene, Lowell L. Wood, Jr., Victoria Y. H. Wood
Life of this patent
Estimating the term…
Abstract
A magnetic field may be applied to a plasmon path to affect plasmon propagation.
Claims25
A system, comprising:
- a first plasmon route defining region including a magnetically interactive portion responsive to a first magnetic field to define a propagation route of a first plasmon signal absent a separate routing structure.
An apparatus, comprising:
- a first surface state support including an input location and an output location, the first surface state support being defined by a boundary between a first material and a second material, wherein the first surface state support is configured to allow surface state propagation in a first frequency range, and wherein the first material and the second material are optically thick in the first frequency range;
- a first magnetically responsive structure interposed at a first central location intermediate the input location and the output location, the first magnetically responsive structure being responsive to a magnetic field to control surface state propagation by establishing a first permittivity proximate to the first surface state support.
An apparatus, comprising:
- a first photonic crystal surface state support including an input location and an output location, wherein the first photonic crystal surface state support includes an interface between a first photonic crystal and a second material, the first photonic crystal including a dielectric omnidirectional reflector;
- and
- a first magnetically responsive structure interposed at a first central location intermediate the input location and the output location, the first magnetically responsive structure being responsive to a magnetic field to control surface state propagation by establishing a first permittivity proximate to the first photonic crystal surface state support.
Dependencies are inferred from the claim text.