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Updated: May 27, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
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A submicron plasmonic dichroic splitter.

John S Q Liu1, Ragip A Pala, Farzaneh Afshinmanesh

  • 1Geballe Laboratory for Advanced Materials, Stanford University, 476 Lomita Mall, Stanford, California 94305, USA.

Nature Communications
|November 10, 2011
PubMed
Summary
This summary is machine-generated.

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Researchers developed an ultracompact plasmonic dichroic splitter using two subwavelength metal grooves. This device efficiently sorts photons by wavelength, enabling independent control over light collection and surface plasmon polariton direction.

Area of Science:

  • Photonics
  • Plasmonics
  • Nanotechnology

Background:

  • Wavelength-selective optical components are crucial for spectral imaging, solar cells, and optical communication.
  • Chip-scale integration demands ultracompact and planar optical devices.
  • Subwavelength plasmonic structures offer novel functionalities like Fano resonances.

Purpose of the Study:

  • To demonstrate an ultracompact plasmonic dichroic splitter.
  • To explore the use of subwavelength metal grooves for wavelength separation.
  • To leverage mode symmetry for optical component design.

Main Methods:

  • Fabrication of two similarly sized subwavelength metal grooves.
  • Characterization of optical coupling and mode properties.

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Published on: September 27, 2011

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Last Updated: May 27, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment
09:13

Plasmonic Trapping and Release of Nanoparticles in a Monitoring Environment

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09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

  • Analysis of free-space photon collection and surface plasmon polariton (SPP) direction.

    • Main Results:

    • An ultracompact submicron plasmonic dichroic splitter was successfully demonstrated.
    • Each groove supports two electromagnetic modes with opposite symmetry.
    • Independent control over photon collection and SPP direction was achieved.

    Conclusions:

    • Symmetry of electromagnetic modes can be exploited to create compact optical components.
    • Subwavelength plasmonic structures offer a pathway to miniaturized optical devices.
    • This work advances the development of integrated photonic systems.