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Updated: Apr 21, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Electrically controlled one-way photon flow in plasmonic nanostructures.

Artur Davoyan¹, Nader Engheta¹

¹Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.

Nature Communications

|November 7, 2014

Summary

Researchers demonstrate electronic control over light propagation in nanoscale plasmonic waveguides. This breakthrough enables an electrically controlled optical isolator, paving the way for future integrated nanophotonics and all-optical computing.

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Area of Science:

Nanophotonics
Plasmonics
Solid-state electronics

Background:

Photonics offers a path to replace solid-state electronics and enable high-speed optical computing.
Key challenges include on-chip integration, electric field tuning of light, dynamic control, and optical signal isolation.

Purpose of the Study:

To propose a paradigm for monolithic electronic control of light propagation in nanoscale plasmonic waveguides.
To design an electrically controlled subwavelength optical isolator.

Main Methods:

Theoretical demonstration of magnetic field effects on plasmonic nanostructures.
Utilizing electric current-induced magnetic fields to alter material parameters and optical signal flow.

Main Results:

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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

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Last Updated: Apr 21, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

Published on: April 4, 2017

Demonstrated that electric current in metallic plasmonic nanostructures can modify material parameters.
Successfully designed an electrically controlled subwavelength optical isolator based on this principle.

Conclusions:

A novel paradigm for electronic control of light propagation in nanophotonics is presented.
The proposed method enables the development of essential components like optical isolators for integrated photonic circuits.