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Related Experiment Videos

Discrete light localization in one-dimensional nonlinear lattices with arbitrary nonlocality.

Andrea Fratalocchi1, Gaetano Assanto

  • 1NooEL-Nonlinear Optics and OptoElectronics Laboratories, INFM-CNISM and Department of Electronic Engineering, University Roma Tre, Via della Vasca Navale 84 00146, Rome, Italy. frataloc@uniroma3.it

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|February 21, 2006
PubMed
Summary

We model discrete spatial solitons in periodic nonlinear media, finding self-localized solutions in optical lattices that exhibit breathing and arbitrary chirp. These discrete solitons can be observed in liquid crystal arrays.

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Area of Science:

  • Nonlinear optics
  • Condensed matter physics
  • Photonics

Background:

  • Discrete spatial solitons are self-localized light waves in periodic nonlinear media.
  • Understanding their behavior is crucial for optical lattice applications.
  • Nematic liquid crystals offer a tunable platform for studying light propagation.

Purpose of the Study:

  • To model discrete spatial solitons in periodic nonlinear media with varying transverse nonlocality.
  • To investigate the properties of these solitons, including chirp and breathing dynamics.
  • To confirm the experimental observability of both local and nonlocal discrete solitons in liquid crystal arrays.

Main Methods:

  • Derivation of a discrete nonlinear Schrödinger equation tailored for nematic liquid crystals.

Related Experiment Videos

  • Analytical and numerical modeling of discrete soliton solutions.
  • Numerical simulations of light propagation in discrete optical lattices.

    • Main Results:

    • A family of discrete solitons was identified in the derived model.
    • These solitons can possess arbitrary degrees of imprinted chirp and exhibit breathing dynamics.
    • Numerical verification confirmed the existence and observation of both local and nonlocal discrete solitons in liquid crystalline arrays.

    Conclusions:

    • The study provides a theoretical framework for discrete spatial solitons in nonlocal nonlinear media.
    • Nematic liquid crystals are suitable for experimentally realizing and studying these complex optical phenomena.
    • The findings advance the understanding of light localization in engineered optical structures.