Optical absorption characteristics and polarization dependence of single-layer graphene on silicon waveguide

Kaori Warabiy, Rai Kou, Shinichi Tanabe, Tai Tsuchizawa, Satoru Suzuki, Hiroki Hibino, Hirochika Nakajima, Koji Yamada

    研究成果: Article査読

    抄録

    Graphene is attracting attention in electrical and optical research fields recently. We measured the optical absorption characteristics and polarization dependence of single-layer graphene (SLG) on submicrometer Si waveguide. The results for graphene lengths ranging from 2.5 to 200 μm reveal that the optical absorption by graphene is 0.09 dB/μm with the TE mode and 0.05 dB/μm with the TM mode. The absorption in the TE mode is 1.8 times higher than that in the TM mode. An optical spectrum, theoretical analysis and Raman spectrum indicate that surfaceplasmon polaritons in graphene support TM mode light propagation.

    本文言語English
    ページ(範囲)736-743
    ページ数8
    ジャーナルIEICE Transactions on Electronics
    E97-C
    7
    DOI
    出版ステータスPublished - 2014

    ASJC Scopus subject areas

    • 電子工学および電気工学
    • 電子材料、光学材料、および磁性材料

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