Engineered nonlinear lattices

Carl A. Balslev Clausen, Peter Leth Christiansen, L. Torner, Yuri Borisovich Gaididei

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    Abstract

    We show that with the quasi-phase-matching technique it is possible to fabricate stripes of nonlinearity that trap and guide light like waveguides. We investigate an array of such stripes and find that when the stripes are sufficiently narrow, the beam dynamics is governed by a quadratic nonlinear discrete equation. The proposed structure therefore provides an experimental setting for exploring discrete effects in a controlled manner. In particular, we show propagation of breathers that are eventually trapped by discreteness. When the stripes are wide the beams evolve in a structure we term a quasilattice, which interpolates between a lattice system and a continuous system. [S1063-651X(99)51311-1].
    Original languageEnglish
    JournalPhysical Review E. Statistical, Nonlinear, and Soft Matter Physics
    Volume60
    Issue number5
    Pages (from-to)R5064-R5067
    ISSN1063-651X
    DOIs
    Publication statusPublished - 1999

    Bibliographical note

    Copyright (1999) by the American Physical Society.

    Keywords

    • PHASE-MATCHING GRATINGS
    • MEDIA
    • CRYSTALS
    • QUADRATIC SOLITONS
    • 2ND-HARMONIC GENERATION
    • POLED LITHIUM-NIOBATE
    • COMPRESSION
    • LINBO3
    • OPTICAL PARAMETRIC OSCILLATOR

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