Threshold conditions for bulk second-order nonlinearity and near-surface second-order nonlinearity in thermally poled infrasil silica

Mingxin Qiu, Toru Mizunami, Teruo Shimomura, Michitaka Ohtaki

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    Generation of bulk second-order nonlinearity in silica glass requires higher poling temperature or longer poling time than that of near-surface second-order nonlinearity. The threshold conditions for initiating the bulk second-order nonlinearity are studied on Infrasil fused silica glass. The threshold poling time is strongly dependent on the poling temperature. The near-surface second-order nonlinearity is also studied, especially the dependence of thickness of the nonlinear layer on the poling temperature, poling voltage and poling time. Secondary-ion mass-spectroscopy measurement showed depletion of Na+ ions at the anodic surface. We assume there is an ionic wave during poling traveling from the anodic surface to generate the dipolar electric field that induces the near-surface second-order nonlinearity.

    Original languageEnglish
    Pages (from-to)159-162
    Number of pages4
    JournalOptical Review
    Volume8
    Issue number3
    DOIs
    Publication statusPublished - 2001

    All Science Journal Classification (ASJC) codes

    • Atomic and Molecular Physics, and Optics

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