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Updated: Jan 31, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

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Published on: January 3, 2016

Nonlinear Atom-Plasmon Interactions Enabled by Nanostructured Graphene.

Joel D Cox¹, F Javier García de Abajo^1,2

¹ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.

Physical Review Letters

|January 5, 2019

Summary

This summary is machine-generated.

We propose using nanostructured graphene to generate nonlinear optical near fields. These fields can control quantum emitters operating at near-infrared frequencies, enabling new applications in sensing and quantum control.

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Area of Science:

Optoelectronics
Quantum Optics
Materials Science

Background:

Graphene plasmons offer strong light-matter interactions but are typically limited to infrared frequencies.
This frequency limitation hinders coupling with optical excitations in quantum light sources and biomolecules.

Purpose of the Study:

To propose a method for resonantly coupling graphene plasmons with quantum emitters in the near-infrared spectrum.
To utilize nonlinear optical responses of nanostructured graphene for enhanced light-matter interactions.

Main Methods:

Employing nanostructured graphene, specifically a graphene nanodisk, to generate nonlinear optical near fields.
Tuning the third harmonic of the plasmon resonance to match electronic transitions in quantum emitters.
Investigating the excitation and coherent control of two- and three-level atomic systems.

Main Results:

Demonstrated strong excitation and coherent control of quantum states in atomic systems.
Achieved non-degenerate emitter and plasmon resonances, avoiding enhanced spontaneous emission.
Showcased the potential of nonlinear plasmonic coupling for specific applications.

Conclusions:

Nonlinear optical near fields from nanostructured graphene can effectively couple with quantum emitters.
This approach overcomes the frequency limitations of traditional graphene plasmons.
Potential applications include advanced sensing and temporal quantum control.