Evidence of Near-Infrared Partial Photonic Bandgap in Polymeric Rod-connected Diamond Structures

Lifeng Chen, Mike P. C. Taverne, Xu Zheng, Jia-De Lin, Ruth Oulton, Martin Lopez-Garcia, Ying-Lung D. Ho, John G. Rarity

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    We present the simulation, fabrication, and optical characterization of low-index polymeric rod-connected diamond (RCD) structures. Such complex three-dimensional photonic crystal structures are created via direct laser writing by two-photon polymerization. To our knowledge, this is the first measurement at near-infrared wavelengths, showing partial photonic bandgaps for this structure. We characterize structures in transmission and reflection using angular resolved Fourier image spectroscopy to visualize the band structure. Comparison of the numerical simulations of such structures with the experimentally measured data show good agreement for both P- and S-polarizations.
    Original languageEnglish
    Pages (from-to)26565-26575
    Number of pages11
    JournalOptics Express
    Volume23
    Issue number20
    DOIs
    Publication statusPublished - 1 Oct 2015

    Keywords

    • Photonic crystals
    • Polymers
    • Microstructure fabrication,
    • Laser materials processing
    • Nanophotonics and photonic crystals

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