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Related Experiment Video

Updated: Jun 30, 2026

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems
07:44

Resonance Raman Spectroscopy of Extreme Nanowires and Other 1D Systems

Published on: April 28, 2016

End and central plasmon resonances in linear atomic chains.

Jun Yan1, Zhe Yuan, Shiwu Gao

  • 1Institute of Physics, Chinese Academy of Sciences, 100080 Beijing, China.

Physical Review Letters
|August 7, 2007
PubMed
Summary

Researchers predict end and central plasmon resonances in atomic chains using ab initio calculations. These collective excitations bridge atomic physics and nanoplasmonics, enabling atomic-scale engineering.

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Area of Science:

  • Physics, Condensed Matter
  • Quantum Chemistry

Background:

  • Plasmons are collective electron oscillations crucial in metals.
  • Understanding plasmon behavior in lower dimensions is key to nanoscale applications.
  • Linear atomic chains offer a 1D system to study fundamental plasmonics.

Purpose of the Study:

  • To predict and characterize end and central plasmon resonances in linear atomic chains.
  • To investigate the length dependence of these plasmon resonances.
  • To establish a link between atomic-scale collective excitations and nanoplasmonics.

Main Methods:

  • Utilizing ab initio time-dependent density functional theory (TD-DFT).
  • Analyzing absorption spectra to observe resonance emergence and collectivity.
  • Examining the convergence of resonances with increasing chain length.

Main Results:

  • Predicted the existence of end and central plasmon resonances in 1D atomic chains.
  • Observed the emergence and development of resonance collectivity with increasing chain length.
  • Identified convergence to single longitudinal and two transverse resonances.

Conclusions:

  • End and central plasmon resonances in atomic chains are the 1D analogs of surface and bulk plasmons.
  • These collective modes bridge atomic physics and nanoplasmonics.
  • The study provides a pathway for atomic-scale engineering of collective excitations.