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An electrically-driven GaAs nanowire surface plasmon source.

Pengyu Fan¹, Carlo Colombo, Kevin C Y Huang

¹Geballe Laboratory for Advanced Materials, Stanford University, Stanford, California 94305, United States.

|August 29, 2012

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Researchers demonstrate electrically driven nanowire light sources coupled to plasmonic waveguides. This breakthrough enables efficient excitation and routing of surface plasmon-polaritons (SPPs) on a chip, advancing plasmonic devices.

Area of Science:

Photonics and Nanotechnology
Optoelectronics
Plasmonics

Background:

Plasmonic waveguides are crucial for applications like biosensors and optical communication.
Practical chip-scale integration is limited by the lack of efficient electrical excitation methods.
Existing surface plasmon lasers and planar sources lack waveguide coupling and routing capabilities.

Purpose of the Study:

To experimentally demonstrate electrically driven light sources integrated with plasmonic nanostrip waveguides.
To show the excitation, waveguiding, splitting, and routing of surface plasmon-polaritons (SPPs).
To overcome limitations in chip-scale plasmonic systems.

Main Methods:

Integration of electrically driven GaAs nanowire light sources with plasmonic nanostrip waveguides (0.08λ² cross-section).

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Last Updated: May 19, 2026

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

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Published on: December 11, 2013

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

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Experimental demonstration of surface plasmon-polariton (SPP) excitation and waveguiding.

Full-field electromagnetic simulations for analysis.

Demonstration of SPP signal splitting and routing around 90° bends.

Main Results:

Successful experimental demonstration of electrically driven SPP sources coupled to plasmonic waveguides.
Validation of SPP excitation and waveguiding through experiments and simulations.
Achieved splitting and routing of electrically generated SPP signals, including 90° bends.
Demonstrated the functionality of integrated plasmon sources for routing plasmonic signals.

Conclusions:

The integration of electrically driven nanowire light sources with plasmonic waveguides is a significant advancement.
This work enables efficient on-chip generation and manipulation of SPPs.
The developed technology greatly expands the applicability of plasmonic waveguides and routing elements in integrated photonic circuits.