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Related Experiment Video

Updated: May 7, 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

Confined surface plasmon-polariton amplifiers.

Stéphane Kéna-Cohen1, Paul N Stavrinou, Donal D C Bradley

  • 1Department of Physics, Imperial College London, London, SW7 2AZ United Kingdom. s.kena-cohen@imperial.ac.uk

Nano Letters
|February 19, 2013
PubMed
Summary

Researchers achieved confined surface plasmon polariton amplifiers using an organic gain medium. Complete loss compensation was observed, leading to a significant net gain of 93 dB/mm in plasmonic devices.

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Area of Science:

  • Optoelectronics
  • Materials Science
  • Photonics

Background:

  • Surface plasmon polaritons (SPPs) are crucial for nanoscale light manipulation.
  • Developing efficient amplifiers for SPPs is essential for integrated photonic circuits.

Purpose of the Study:

  • To demonstrate confined surface plasmon polariton amplifiers.
  • To investigate loss compensation and net gain in organic gain media.

Main Methods:

  • Utilizing a thin layer of 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran dispersed in a tris(8-hydroxy-quinolinato)aluminum matrix.
  • Direct time-domain observation of loss compensation.
  • Studying power dependence and waveguide length effects.

Main Results:

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

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Related Experiment Videos

Last Updated: May 7, 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

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

  • Complete loss compensation achieved at a pump fluence of approximately 200 μJ/cm².
  • Significant net gain of 93 dB/mm observed at the highest fluence.
  • Demonstrated feasibility of SPP amplification in organic materials.

Conclusions:

  • The study successfully realized confined SPP amplifiers.
  • Organic gain media offer a viable route for achieving net gain in plasmonic waveguides.
  • These findings pave the way for advanced plasmonic devices and circuits.