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Plasmon cross transmission.

Leonard Dobrzynski1, Abdellatif Akjouj, Changsheng Li

  • 1Centre National de la Recherche Scientifique, Université Lille Nord de France, Lille1, France.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|August 24, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces plasmon cross transmission, a method using metal dots to guide plasmons and prevent collisions. This technique enables efficient signal transmission between guides, crucial for plasmonic devices.

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Area of Science:

  • Condensed matter physics
  • Nanophotonics
  • Plasmonics

Background:

  • Plasmons are collective electron oscillations in metals.
  • Frontal collisions of oppositely directed plasmons can disrupt signal transmission.
  • Existing methods may not efficiently redirect plasmon signals.

Purpose of the Study:

  • To propose and analyze a novel plasmon cross transmission technique.
  • To avoid frontal collisions between counter-propagating plasmons.
  • To enable efficient plasmon transfer from an input to an output guide.

Main Methods:

  • Utilizing a guide composed of equidistant, identical metal dots.
  • Employing two resonator dots to facilitate transmission.
  • Modeling dipole-dipole interactions limited to nearest neighbors.
  • Assuming metal doping to negate signal attenuation.

Main Results:

  • Demonstrated avoidance of plasmon frontal impact through transmission.
  • Derived two analytic tuning relations for plasmon cross transmission.
  • Provided intensities of transmitted signals as a function of kd (plasmon wavevector times nearest neighbor distance).

Conclusions:

  • Plasmon cross transmission offers a viable method to manage plasmon propagation.
  • The system's design, based on metal dots and resonators, facilitates controlled signal transfer.
  • Analytic relations and intensity data provide a foundation for designing plasmonic circuits.