Creating periodic three-dimensional structures by multibeam interference of visible laser

Shu Yang, Mischa Megens, Joanna Aizenberg, Pierre Wiltzius, Paul M. Chaikin, William B. Russel

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Face-centered cubiclike lattices with periods of 0.9 μm were created by interference of multiple visible laser beams on photosensitive epoxy. Defect-free porous structures were obtained in an area larger than 1 mm within seconds of exposure. The initiating system includes a xanthene dye as a photosensitizer and a diaryliodionium salt as a photoacid generator. An appropriate concentration of triethylamine is added as a neutralizer to eliminate nonzero background caused by partly nonparallel polarization of multiple beams.

    Original languageEnglish (US)
    Pages (from-to)2831-2833
    Number of pages3
    JournalChemistry of Materials
    Volume14
    Issue number7
    DOIs
    StatePublished - 2002

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Chemistry

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