Resonant-tunneling electronic transportors
AssigneeMassachusetts Institute of Technology
InventorsShanhui Fan, Pierre R. Villeneuve, John D. Joannopoulos
Life of this patent
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Abstract
An electronic transportor that allows for the resonant tunneling of electrons between guided states, such as those found in a quantum wire or a line defect in a solid, and localized states, such as those found in a quantum dot or a point defect in a solid, using lateral coupling. In some embodiments, the transporter allows electrons of different energies to be transported to different ports of associated waveguides. In other embodiments, the transportor allows electrons of different energies to be transported at different phases.
Claims34
An electronic device comprising:
- an electronic waveguide for propagating electrons of a plurality of energies therethrough;
- and
- an electronic resonator system which is laterally coupled to said waveguide by resonant tunneling such that said electronic resonator system is not within said electronic waveguide.
An electronic transportor device comprising:
- an electronic waveguide having an input port and an output port for propagating electrons of a plurality of energies therethrough;
- and
- an electronic resonator system which is laterally coupled to said waveguide by resonant tunneling such that said electronic resonator system is not within said electronic waveguide, said resonator system reflecting electrons of a first predetermined set of energies and transmitting electrons of the remaining energies through said input waveguide.
An electronic transporter device comprising:
- an electronic waveguide having an input port and an output port for propagating electrons of a plurality of energies therethrough;
- and
- an electronic resonator system which is laterally coupled to said waveguide by resonant tunneling such that said electronic resonator system is not within said electronic waveguide, said resonator system transmitting all electron energies through said input waveguide and modulating the phase of the transmitted electrons.
An electronic transporter device comprising:
- an input electronic waveguide which propagates electrons of a plurality of energies including a desired energy;
- an output electronic waveguide;
- and
- an electronic resonator system coupled between said input and output waveguides such that said electronic resonator system is not within said electronic waveguides, and which transfers electrons of said desired energy to said output waveguide and allows transmission of electrons of the remaining energies through said input waveguide.
Dependencies are inferred from the claim text.