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Related Experiment Videos

Random resonators and prelocalized modes in disordered dielectric films.

V M Apalkov1, M E Raikh, B Shapiro

  • 1Department of Physics, University of Utah, Salt Lake City, Utah 84112, USA.

Physical Review Letters
|July 5, 2002
PubMed
Summary

We calculated the density of disorder-induced resonators in films with fluctuating refractive index. Higher disorder correlation radius significantly increases resonator likelihood in diffusive light propagation regimes.

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Area of Science:

  • Photonics
  • Condensed Matter Physics
  • Optical Materials

Background:

  • Disorder in optical films can induce resonant phenomena.
  • Understanding these resonators is crucial for controlling light propagation.
  • High-quality factor resonators are particularly significant.

Purpose of the Study:

  • To calculate the areal density of disorder-induced resonators.
  • To investigate the influence of disorder correlation radius on resonator formation.
  • To determine the parameters of probable resonators based on quality factor (Q) and light transport properties (kl).

Main Methods:

  • Theoretical calculation of resonator areal density.
  • Analysis of resonator likelihood in diffusive light propagation (kl>1).

Related Experiment Videos

  • Dependence analysis on the correlation radius of refractive index fluctuations.

    • Main Results:

    • The likelihood of finding random resonators dramatically increases with the correlation radius of disorder.
    • This effect is pronounced when light propagation is diffusive (kl>1).
    • Parameters of the most probable resonators were determined as functions of Q and kl.

    Conclusions:

    • Disorder-induced resonators can be significantly enhanced by increasing the correlation radius of refractive index fluctuations.
    • This finding has implications for designing optical films with tailored resonant properties.
    • The study provides a framework for predicting resonator characteristics in disordered media.