Observation of nonlinear surface waves in modulated waveguide arrays

Xinyuan Qi*, Ivan L. Garanovich, Zhiyong Xu, Andrey A. Sukhorukov, Wieslaw Krolikowski, Arnan Mitchell, Guoquan Zhang, Dragomir N. Neshev, Yuri S. Kivshar

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)


    We describe theoretically and study experimentally nonlinear surface waves at the edge of a modulated waveguide array with a surface defect and a self-defocusing nonlinearity. We fabricate such structures in a LiNbO 8 crystal and demonstrate the beam switching to different output waveguides with a change of the light intensity due to nonlinear coupling between the linear surface modes supported by the array.

    Original languageEnglish
    Pages (from-to)2751-2753
    Number of pages3
    JournalOptics Letters
    Issue number18
    Publication statusPublished - 15 Sept 2009


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