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Related Experiment Video

Updated: May 18, 2026

Optical Trapping of Nanoparticles
13:39

Optical Trapping of Nanoparticles

Published on: January 15, 2013

All-dielectric optical nanoantennas.

Alexander E Krasnok1, Andrey E Miroshnichenko, Pavel A Belov

  • 1National Research University of Information Technologies, Mechanics and Optics, St. Petersburg 197101, Russia. krasnokfiz@mail.ru

Optics Express
|October 6, 2012
PubMed
Summary

Novel dielectric nanoantennas offer superior performance. These optical nanoantennas utilize strong magnetic resonances for highly efficient, compact designs, outperforming traditional plasmonic antennas.

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Area of Science:

  • Photonics and Nanotechnology
  • Optical Metamaterials

Background:

  • Optical nanoantennas are crucial for manipulating light at the nanoscale.
  • Plasmonic antennas, while effective, face limitations in efficiency and design flexibility.
  • Dielectric resonators offer an alternative with unique electromagnetic properties.

Purpose of the Study:

  • To investigate novel optical nanoantennas based on high-permittivity, low-loss dielectric particles.
  • To explore the potential of dielectric nanoantennas in Yagi-Uda configurations for enhanced performance.
  • To compare the efficiency and design characteristics of dielectric versus plasmonic nanoantennas.

Main Methods:

  • Detailed theoretical and numerical study of dielectric nanoantenna performance.
  • Analysis of electric and magnetic resonance phenomena in dielectric nanoparticles.

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Last Updated: May 18, 2026

Optical Trapping of Nanoparticles
13:39

Optical Trapping of Nanoparticles

Published on: January 15, 2013

Fabrication and Operation of a Nano-Optical Conveyor Belt
11:10

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics
09:12

Colloidal Synthesis of Nanopatch Antennas for Applications in Plasmonics and Nanophotonics

Published on: May 28, 2016

  • Comparative performance evaluation with plasmonic nanoantenna designs.

    • Main Results:

    • Dielectric particles exhibit strong nanoscale magnetic resonances alongside electric resonances.
    • Yagi-Uda nanoantennas constructed from dielectric particles demonstrate high radiation efficiency.
    • All-dielectric nanoantennas show potential for improved radiation efficiency and more compact designs compared to plasmonic counterparts.

    Conclusions:

    • All-dielectric nanoantennas represent a promising alternative to plasmonic designs.
    • The strong magnetic resonances in dielectric particles are key to achieving high efficiency.
    • Dielectric nanoantennas enable more compact and efficient optical devices.