Nematicons and Their Electro-Optic Control: Light Localization and Signal Readdressing via Reorientation in Liquid Crystals

Armando Piccardi, Alessandro Alberucci, Gaetano Assanto

    Research output: Contribution to journalLiterature reviewScientificpeer-review

    3 Citations (Scopus)

    Abstract

    Liquid crystals in the nematic phase exhibit substantial reorientation when the molecules are driven by electric fields of any frequencies. Exploiting such a response at optical frequencies, self-focusing supports transverse localization of light and the propagation of self-confined beams and waveguides, namely nematicons. Nematicons can guide other light signals and interact with inhomogeneities and other beams. Moreover, they can be effectively deviated by using the electro-optic response of the medium, leading to several strategies for voltage-controlled reconfiguration of light-induced guided-wave circuits and signal readdressing. Hereby, we outline the main features of nematicons and review the outstanding progress achieved in the last twelve years on beam self-trapping and electro-optic readdressing.

    Original languageEnglish
    Pages (from-to)19932-19950
    Number of pages19
    JournalInternational Journal of Molecular Sciences
    Volume14
    Issue number10
    DOIs
    Publication statusPublished - Oct 2013
    Publication typeA1 Journal article-refereed

    Keywords

    • reorientation
    • liquid crystals
    • nonlinear optics
    • nonlocality
    • solitons
    • self-focusing
    • beam steering
    • SPATIAL SOLITONS
    • BEAMS
    • NONLINEARITY
    • NONLOCALITY
    • PARTICLES

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