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Related Experiment Video

Updated: Apr 27, 2026

Fabrication and Operation of a Nano-Optical Conveyor Belt
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Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

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Three-dimensional winged nanocone optical antennas.

Mikko J Huttunen, Klas Lindfors, Domenico Andriano

    Optics Letters
    |July 1, 2014
    PubMed
    Summary
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    We developed novel 3D optical antennas using winged nanocones. These antennas efficiently convert light into strong localized fields, enabling advanced nanoscale imaging and sensing applications.

    Area of Science:

    • Plasmonics and Nanophotonics
    • Optical Engineering

    Background:

    • Optical antennas are crucial for manipulating light at the nanoscale.
    • Existing antennas often struggle with efficient conversion of transverse to longitudinal fields.

    Purpose of the Study:

    • To introduce and characterize novel 3D optical antennas based on winged nanocones.
    • To demonstrate their capability for transforming far-field radiation into strong local fields.

    Main Methods:

    • Fabrication of 3D winged nanocone optical antennas.
    • Characterization using extinction spectroscopy.
    • Second-harmonic generation microscopy with cylindrical vector beams.

    Main Results:

    • Winged nanocone antennas support particle plasmon oscillations.

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  • Demonstrated efficient transformation of transverse to longitudinal optical fields.
  • Observed polarization-controllable optical responses.

    • Conclusions:

    • Winged nanocone antennas represent a new class of 3D optical antennas.
    • These antennas are suitable for applications requiring strong longitudinal fields.
    • Potential applications include apertureless near-field microscopy, spectroscopy, and plasmonic sensing.