Three-dimensional two-photon laser fabrication for metals, polymers, and magneto-optical materials

Takuo Tanaka, Atsushi Ishikawa, Tomohiro Amemiya

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)


    The three-dimensional (3D) two-photon laser fabrication techniques for metal, polymer, and magneto-optical structures are presented. Two-photon-induced reduction of metal complex ions was developed to create 3D metal micro/nano structures. Owing to the inhibition of unwanted growth of metal nano crystals using surfactant molecules, we have successfully improved the spatial resolution of fabricated metal structures down to 100 nm in linewidth. Arbitrary shaped 3D silver structures with high electric conductivity were fabricated. Two-photon-induced photopolymerization technique has been applied for the photonic wire bonding. We have demonstrated the optical interconnection of III-V based DFB lasers and photo detectors by polymer wires with optical coupling loss less than 0.3dB. We also applied two-photon laser irradiation technique for the modification of the magnetic properties of cerium-substituted yttrium iron garnet crystal (CexY3-xFe5O12: Ce:YIG). A Ce:YIG layer was epitaxially-grown on a monomagnetic garnet (<111>-SGGG) substrate. 3D fs laser scanning in the Ce:YIG layer creates the micrometer patterns of both refractive index and magnetic properties change of the crystal. We demonstrated the micro/nanometer scale patterning of both optical and magnetic properties in the Ce:YIG crystal.

    Original languageEnglish
    Title of host publicationLaser 3D Manufacturing II
    EditorsMartin Wegener, Henry Helvajian, Bo Gu, Alberto Pique
    ISBN (Electronic)9781628414431
    Publication statusPublished - Jan 1 2015
    EventLaser 3D Manufacturing II - San Francisco, United States
    Duration: Feb 10 2015Feb 12 2015

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X


    OtherLaser 3D Manufacturing II
    Country/TerritoryUnited States
    CitySan Francisco


    • Femto-second laser
    • Magneto-optical materials
    • Metals
    • Metamaterials
    • Polymerization
    • Reduction
    • Three-dimensional structures
    • Two-photon

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Computer Science Applications
    • Applied Mathematics
    • Electrical and Electronic Engineering


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