Fabrication of a void array in dielectric materials by femtosecond laser micro-processing for compact photonic devices

Mitsuhiro Terakawa, Eiji Toratani, Tatsuya Shirakawa, Minoru Obara

    研究成果: Article査読

    9 被引用数 (Scopus)

    抄録

    We describe a systematic investigation on void structures fabricated by femtosecond laser irradiation inside dielectric materials for fabrication of a compact optical circuit. Void shapes fabricated in 5 different dielectric materials were compared and the physical constants determining the void shape were discussed. A long void array is obtainable in a material which has a low critical power for self-focusing. It was also indicated that the coefficient of thermal expansion is a dominant governing factor to fabricate a precise void which has a clear boundary. Furthermore, we propose and design a Mach-Zehnder interferometer in fused silica composed of optical waveguides and photonic crystals to verify practical application of a void array. Simulation results of the optical propagation in a Mach-Zehnder interferometer indicated that the photonic crystals using a void array have potential to fabricate compact optical circuits.

    本文言語English
    ページ(範囲)1041-1047
    ページ数7
    ジャーナルApplied Physics A: Materials Science and Processing
    100
    4
    DOI
    出版ステータスPublished - 2010 9 1

    ASJC Scopus subject areas

    • 化学 (全般)
    • 材料科学(全般)

    フィンガープリント

    「Fabrication of a void array in dielectric materials by femtosecond laser micro-processing for compact photonic devices」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル