Plasmonic systems and devices utilizing surface plasmon polaritons

Abstract

Plasmonic systems and devices that utilize surface plasmon polaritons (or “plasmons”) for inter-chip and/or intra-chip communications are provided. A plasmonic system includes a microchip that has an integrated circuit module and a plasmonic device configured to interface with the integrated circuit module. The plasmonic device includes a first electrode, a second electrode positioned at a non-contact distance from the first electrode, and a tunneling-junction configured to create a plasmon when a potential difference is created between the first electrode and the second electrode.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other advantages will become more apparent from the following detailed description of the various embodiments of the present disclosure with reference to the drawings wherein:

FIG. 1 is a schematic drawing of a plasmonic communications system in accordance with the present disclosure;

FIG. 2A is a schematic drawing of a plasmonic waveguide in accordance with the present disclosure;

FIG. 2B is a schematic drawing of another plasmonic waveguide in accordance with the present disclosure;

FIG. 3 is a schematic drawing of a plasmonic device that can generate plasmons in accordance with the present disclosure;

FIG. 4 is a schematic drawing of a plasmonic device that can convert a plasmon to a photon and then to an electrical signal in accordance with the present disclosure;

FIG. 5 is a schematic drawing of a plasmonic device for converting a plasmon to a photon and guiding the photon to a fiber optic cable by an optical waveguide in accordance with the present disclosure;

FIG. 6 is a schematic drawing of plasmonic communications system in a flower topology in accordance with the present disclosure;

FIG. 7 is a schematic drawing of a plasmonic communications system in a stack topology in accordance with the present disclosure; and

FIGS. 8-10 are block diagrams of different computer architectures utilizing plasmonic devices or waveguides in accordance with the present disclosure for various connections.

Claims

1. A plasmonic system comprising: a microchip module comprising an integrated circuit; anda plasmonic device configured to interface with the integrated circuit, the plasmonic device comprises: a first electrode;a second electrode positioned at a non-contact distance from the first electrode; anda tunneling-junction provided between the first and second electrodes and configured to create a plasmon when a potential difference is created between the first electrode and the second electrode.

2. The device of claim 1, wherein at least one of the first and second electrodes comprises a plurality of edges at an end thereof defining a plurality of nanojunctions.

3. The system of claim 1, further comprising another plasmonic device in operative communication with the plasmonic device, said another plasmonic device comprising: a plasmon interface;an optical-conversion assembly configured to convert plasmons received from the plasmon interface into photons; andan output device configured to receive a photon from the optical-conversion assembly.

4. The system of claim 3, wherein the output device is selected from the group consisting of a p-i-n diode, a photodiode, an avalanche diode, a p-n junction diode, a phototransistor, a light dependent resistor, and a photodetector, and wherein the output device is configured to convert the received photon to an electrical signal.

5. The system of claim 3, wherein the output device is an optical waveguide configured to guide the photon to a fiber-optic cable.

6. The system of claim 3, further comprising at least one plasmonic waveguide for enabling operative communication between the plasmonic device and the another plasmonic device.

7. The system of claim 6, wherein the at least one plasmonic waveguide comprises: an elongated metallic strip defining a length; anda dielectric material at least partially disposed upon the length of the metallic strip.

8. The system of claim 7, wherein the at least one plasmonic waveguide further comprises another metallic strip at least partially disposed upon the dielectric material opposite to the elongated metallic strip.

9. A plasmonic system comprising: a microchip module comprising an integrated circuit; anda plasmonic device comprising: a plasmon interface;an optical-conversion assembly configured to convert a plasmon that is received from the plasmon interface into a photon; andan output device configured to receive the photon from the optical-conversion assembly, wherein the output device is configured to convert the received photon to an electronic signal, and wherein the integrated circuit is configured to receive the electronic signal.

10. The system of claim 9, wherein the plasmon interface is configured for coupling to a plasmonic waveguide.

11. The system of claim 9, wherein the output device is selected from the group consisting of a p-i-n diode, a photodiode, an avalanche diode, a p-n junction diode, a phototransistor, a light dependent resistor, and a photodetector.

12. An plasmonic communications system comprising: a first microchip module; anda second microchip module in operative communication with the first microchip module via at least one plasmonic waveguide.

13. The system of claim 12, wherein the second microchip module includes an integrated circuit.

14. The system of claim 12, wherein the second microchip module further comprises a connection point and a plasmonic device, wherein the connection point is configured to interface into at least one fiber optic cable and the plasmonic device, the plasmonic device configured to be in operative communication with the first microchip module utilizing the at least one plasmonic waveguide, the plasmonic device comprising: a plasmon interface configured to receive a plasmon from the at least one plasmonic waveguide;an optical-conversion assembly configured to convert plasmons received from the plasmon interface into photons; andan output device configured to receive a photon from the optical-conversion assembly and guide the photon to the connection point.

15. The system of claim 12, wherein the system includes one of a stack topology and a flower topology.

16. The system of claim 12, wherein the at least one plasmonic waveguide comprises: an elongated metallic strip defining a length; anda dielectric material at least partially disposed upon the length of the metallic strip.

17. The system of claim 16, wherein the at least one plasmonic waveguide further comprises another metallic strip at least partially disposed upon the dielectric material opposite to the elongated metallic strip.

18. A plasmonic device comprising: a first electrode;a second electrode positioned at a non-contact distance from the first electrode; anda tunneling-junction provided between the first and second electrodes and configured to create a plasmon when a potential difference is created between the first electrode and the second electrode.

19. The device of claim 18, wherein the tunneling-junction includes a dielectric material.

20. The device of claim 19, wherein the dielectric material includes silicon dioxide.

21. The device of claim 18, wherein at least one of the first and second electrodes comprises a plurality of edges at an end thereof defining a plurality of nanojunctions.

22. A plasmonic waveguide comprising: an elongated metallic strip defining a length; anda dielectric material at least partially disposed upon the length of the metallic strip.

23. The waveguide of claim 22, further comprising another metallic strip at least partially disposed upon the dielectric material opposite to the elongated metallic strip.

24. The waveguide of claim 22, wherein the dielectric material includes silicon dioxide.

25. A plasmonic device comprising: a plasmon interface;an optical-conversion assembly configured to convert a plasmon received from the plasmon interface into a photon; andan output device configured to receive a photon from the optical-conversion assembly.

26. The device claim 25, wherein the plasmon interface is configured for coupling to a plasmonic waveguide.

27. The device of claim 25, wherein the output device is selected from the group consisting of a p-i-n diode, a photodiode, an avalanche diode, a p-n junction diode, a phototransistor, a light dependent resistor, and a photodetector, wherein the output device is configured to convert the photon to an electrical signal.

28. The device of claim 25, wherein the optical-conversion assembly is selected from the group consisting of a surface bump, a surface hole, and a nanoarray.

29. The device of claim 25, wherein the output device is an optical waveguide configured to guide the photon to a fiber-optic cable.

30. A computer architecture comprising: a plurality of computer chips, at least one of the plurality of computer chips including at least one of an interconnection network, a processor, cache memory, and a memory; anda plurality of connections connecting the plurality of computer chips, wherein at least one of the plurality of connections includes at least one of a plasmonic device and waveguide.