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Related Experiment Video

Updated: Mar 11, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Active magnetoplasmonic split-ring/ring nanoantennas.

Hua Yu Feng¹, Feng Luo, Raul Arenal

¹IMDEA Nanoscience, Faraday 9, Ciudad Universitaria de Cantoblanco, Madrid, 28049, Spain.

|December 2, 2016

Summary

This summary is machine-generated.

Researchers developed a new magnetoplasmonic system enhancing magneto-optical activity by 3x. This novel nanostructure combines split ring resonators with cobalt nanodots for improved light-matter interactions.

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Fabrication and Operation of a Nano-Optical Conveyor Belt

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Published on: August 26, 2015

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Last Updated: Mar 11, 2026

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Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Area of Science:

Nanotechnology
Plasmonics
Magneto-optics

Background:

Magnetoplasmonic nanostructures offer enhanced magneto-optical (MO) effects.
Split ring resonators (SRRs) provide strong electromagnetic field localization.

Purpose of the Study:

To combine SRR field localization with MO enhancement in nanostructures.
To achieve significantly improved magneto-optical activity through precise structural engineering.

Main Methods:

Fabrication of a hybrid nanostructure: gold SRR on a gold nanoring with an embedded Cobalt (Co) nanodot.
Tuning electromagnetic field intensity in the Co nanodot by adjusting the SRR gap.
Experimental validation using Electron Energy Loss Spectroscopy (EELS) and numerical simulations using Discrete Dipole Approximation (DDA).
Utilizing hole-mask colloidal lithography and multiaxial evaporation for precise fabrication.

Main Results:

Demonstrated a 3-fold increase in magneto-optical activity compared to structures without SRRs.
Showcased tunable enhancement of electromagnetic field intensity in the Co nanodot.
Confirmed experimental results with numerical simulations.

Conclusions:

The integrated system effectively enhances magneto-optical activity through synergistic plasmonic and electromagnetic field effects.
Precise control over component positioning, dimensions, and shape is crucial for performance optimization.
This approach offers a pathway to highly efficient magnetoplasmonic devices.