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Related Experiment Videos

Localization of electromagnetic waves in a two-dimensional random medium.

Zhen Ye1, Sheng Li, Xin Sun

  • 1Research Center for Theoretical Physics, Fudan University, Shangai, China. zhen@phy.ncu.edu.tw

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|November 22, 2002
PubMed
Summary

Researchers demonstrate that electromagnetic waves can be localized in two dimensions within disordered systems of electric dipoles. This localization exhibits coherent behavior, distinct from absorption or attenuation effects.

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Area of Science:

  • Physics
  • Electromagnetism
  • Wave Phenomena

Background:

  • Previous studies explored radiative effects of electric dipoles in structured cavities.
  • Understanding wave localization in disordered systems is crucial for various applications.

Purpose of the Study:

  • To investigate the ab initio localization of electromagnetic waves in two dimensions.
  • To analyze a system composed of numerous randomly distributed two-dimensional electric dipoles.

Main Methods:

  • Derivation of self-consistent equations accounting for all orders of multiple scattering.
  • Numerical solution of these equations to determine the total electromagnetic field.

Main Results:

  • Spatially localized electromagnetic waves were observed in the disordered dipole system.

Related Experiment Videos

  • Localization was characterized by coherent behavior, distinguishing it from absorption or attenuation.

    • Conclusions:

    • Disordered systems of randomly distributed electric dipoles can support localized electromagnetic waves.
    • Coherent behavior is a key indicator of wave localization, differentiating it from other wave interaction phenomena.