Enhanced fourth harmonic generation via nonlinear Čerenkov interaction in periodically poled lithium niobate crystal

Xin Chen, Krzysztof Switkowski, Xiaopeng Hu, Wieslaw Krolikowski, Yan Sheng

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)

    Abstract

    We introduce a custom-cut periodically poled ferroelectric crystal for the phase matching of multistep cascading frequency conversion processes. Our approach involves combination of collinear second harmonic generation and transverse sum frequency mixing via the total internal reflection of the fundamental and collinear second harmonic beams. As a proof of concept we demonstrate multiple frequency generation with an enhanced fourth harmonic signal in a one-dimensional periodically poled LiNbO3 crystal.

    Original languageEnglish
    Pages (from-to)29948-29954
    Number of pages7
    JournalOptics Express
    Volume24
    Issue number26
    DOIs
    Publication statusPublished - 26 Dec 2016

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