Transmitting light efficiently on photonic crystal surface waveguide bend

E. H. Khoo, T. H. Cheng, A. Q. Liu*, Jingqi Li, D. Pinjala

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Scopus citations

    Abstract

    In this letter, the transmission efficiency around waveguide bend on the surface of photonic crystal is investigated. Light is confined to the photonic crystal-air interface by means of surface modes. The transmission efficiency around surface waveguide bend is shown to be very poor. This is due to the phase mismatch of the wave vectors between different sections of the surface waveguide bend. To reduce the phase mismatch between the different waveguide sections, the cell properties at the bend section are modified. As a result, high transmission efficiency of more than 93% around the modified surface waveguide bend structure is achieved.

    Original languageEnglish (US)
    Article number171109
    JournalApplied Physics Letters
    Volume91
    Issue number17
    DOIs
    StatePublished - Nov 1 2007

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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