Effect of substrate on optical bound states in the continuum in 1D photonic structures

Z. F. Sadrieva, I. S. Sinev, A. K. Samusev, I. V. Iorsh, K. L. Koshelev, Osamu Takayama, Radu Malureanu, A. V. Lavrinenko, A. A. Bogdanov

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    Abstract

    Optical bound states in the continuum (BIC) are localized states with energy lying above the light line and having infinite lifetime. Any losses taking place in real systems result in transformation of the bound states into resonant states with finite lifetime. In this work, we analyze properties of BIC in CMOS-compatible one-dimensional photonic structure based on silicon-on-insulator wafer at telecommunication wavelengths, where the absorption of silicon is negligible. We reveal that a high-index substrate could destroy both off-Γ BIC and in-plane symmetry protected at-Γ BIC turning them into resonant states due to leakage into the diffraction channels opening in the substrate.
    Original languageEnglish
    Article number030005
    JournalAIP Conference Proceedings
    Volume1874
    Number of pages5
    ISSN0094-243X
    DOIs
    Publication statusPublished - 2017
    Event2017 International Conference on Metamaterials and Nanophotonics - Vladivostok, Russian Federation
    Duration: 18 Sept 201722 Sept 2017

    Conference

    Conference2017 International Conference on Metamaterials and Nanophotonics
    Country/TerritoryRussian Federation
    CityVladivostok
    Period18/09/201722/09/2017

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