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Updated: Mar 7, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle

Published on: September 22, 2015

Low-dimensional gap plasmons for enhanced light-graphene interactions.

Yunjung Kim¹, Sunkyu Yu¹, Namkyoo Park¹

¹Photonic Systems Laboratory, Department of Electrical and Computer Engineering, Seoul National University, Seoul 08826, Korea.

Scientific Reports

|February 28, 2017

Summary

This summary is machine-generated.

Researchers developed hybrid graphene gap plasmon waves to enhance light-graphene interactions for tunable plasmonic devices. This approach overcomes limitations in current graphene plasmonics, enabling efficient light manipulation.

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

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Published on: July 21, 2018

Area of Science:

Optics and Photonics
Materials Science
Condensed Matter Physics

Background:

Graphene plasmonics offers deep-subwavelength light confinement and tunability.
Atomic-scale graphene thickness limits light-graphene overlap and efficient mode tuning.
Existing graphene plasmon modes struggle with efficient light interaction.

Purpose of the Study:

To propose and investigate low-dimensional hybrid graphene gap plasmon waves.
To enhance the light-graphene overlap factor for improved plasmonic performance.
To achieve efficient and linear modulation of graphene plasmon modes.

Main Methods:

Inspired by noble metal gap plasmons, hybrid structures were designed.
Numerical simulations or experimental fabrication of graphene gap plasmon structures.
Tuning of graphene chemical potential to modulate plasmon modes.

Main Results:

Hybrid graphene gap plasmon waves demonstrate superior in-plane and out-of-plane field confinement on graphene.
Achieved significantly larger light-graphene overlap factors compared to edge or wire plasmons.
Demonstrated efficient and linear modulation of plasmon modes by adjusting graphene's chemical properties.

Conclusions:

Hybrid graphene gap plasmon waves offer a promising route to overcome limitations in graphene plasmonics.
The proposed structures enable enhanced light-graphene interaction and strong tunability.
These findings pave the way for advanced low-dimensional graphene plasmonic devices.