Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jun 23, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Unidirectional ultracompact optical nanoantennas.

Tavakol Pakizeh¹, Mikael Käll

¹Department of Applied Physics, Chalmers University of Technology, Goteborg 412 96, Sweden. Tavakol.pakizeh@chalmers.se

|May 9, 2009

Summary

Researchers developed an ultracompact optical nanoantenna using interacting plasmonic nanoparticles. This nanoantenna achieves highly unidirectional light emission, a key breakthrough for optical devices.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Physics-aware graph neural networks for optically interacting plasmonic nanoparticle assemblies.

Optics express·2026

Same author

Flat Plasmonic Biosensor with an On-Chip Metagrating-Integrated Laser.

ACS sensors·2025

Same author

Microscopic geared metamachines.

Nature communications·2025

Same author

Harnessing Photon Recoil for Enhanced Torque on Light-Driven Metarotors.

Nano letters·2025

Same author

Depolarized Forward Light Scattering for Subnanometer Precision in Biomolecular Layer Analysis on Gold Nanorods.

The journal of physical chemistry letters·2025

Same author

Transverse optical gradient force in untethered rotating metaspinners.

Light, science & applications·2025

Area of Science:

Plasmonics and Nanophotonics
Optical Nanoantennas
Electromagnetism

Background:

Optical nanoantennas are crucial for controlling light at the nanoscale.
Achieving directional light emission is a significant challenge in nanophotonics.

Purpose of the Study:

To investigate the directional emission properties of a simple optical nanoantenna.
To analyze the underlying physics of directionality in plasmonic nanoparticle pairs.

Main Methods:

Utilized electrodynamics simulations.
Performed dipole analysis.
Investigated radiation, reception, and reciprocity concepts.

Main Results:

Observed a dramatic directionality effect in an optical nanoantenna.
Demonstrated unidirectional radiation from a dipole source near interacting plasmonic nanoparticles.
Achieved a forward-backward directionality of approximately 18 dB at 665 nm.

Conclusions:

A simple nanoantenna composed of two gold nanodisks exhibits significant light emission directionality.
The observed effect is linked to the antiphase hybridized plasmon resonance.
This work offers a pathway for designing efficient directional nanoantennas.

More Related Videos

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Optical Trapping of Nanoparticles

Optical Trapping of Nanoparticles

Published on: January 15, 2013

Related Experiment Videos

Last Updated: Jun 23, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Ultrahigh Density Array of Vertically Aligned Small-molecular Organic Nanowires on Arbitrary Substrates

Published on: June 18, 2013

Optical Trapping of Nanoparticles

Optical Trapping of Nanoparticles

Published on: January 15, 2013