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Related Experiment Video

Updated: May 23, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
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Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

Ultra-subwavelength two-dimensional plasmonic circuits.

William F Andress1, Hosang Yoon, Kitty Y M Yeung

  • 1School of Engineering and Applied Sciences, Harvard University, 33 Oxford Street, Cambridge, Massachusetts 02138, USA.

Nano Letters
|April 13, 2012
PubMed
Summary
This summary is machine-generated.

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Researchers developed two-dimensional (2D) plasmonic circuits operating at gigahertz (GHz) frequencies. These circuits enable ultrasubwavelength confinement for electronics, offering significant mode-area reduction and new design possibilities.

Area of Science:

  • Physics
  • Electrical Engineering
  • Materials Science

Background:

  • Traditional electronic circuits face limitations in miniaturization and speed.
  • Plasmonics offers potential for subwavelength wave manipulation, but integration with electronics remains challenging.

Purpose of the Study:

  • To demonstrate gigahertz (GHz) two-dimensional (2D) plasmonic circuits.
  • To achieve local and nonresonant interfacing between plasmonics and electronics.
  • To explore the benefits of ultrasubwavelength confinement for electronic applications.

Main Methods:

  • Fabrication of 2D plasmonic media positioned 80 nm beneath an unpatterned metallic gate.
  • Shaping the geometry of the 2D plasmonic media to control plasmon propagation.
  • Utilizing plasmonic reflections and interferences to create circuit functionalities.

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Last Updated: May 23, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

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

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography
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Published on: September 2, 2017

Main Results:

  • Achieved ultrasubwavelength confinement with up to 440,000-fold mode-area reduction.
  • Demonstrated the routing of plasmons through geometric shaping, enabling various circuit configurations.
  • Successfully created plasmonic crystals and plasmonic-electromagnetic interferometers.

Conclusions:

  • 2D plasmonic circuits offer a novel approach for interfacing with electronics at GHz frequencies.
  • The demonstrated technology enables significant mode-area reduction, paving the way for more compact and efficient electronic devices.
  • This work opens new avenues for the development of advanced plasmonic-based electronic systems.