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    High-responsivity plasmonics-based GaAs metal-semiconductor-metal photodetectors

    Access Status
    Fulltext not available
    Authors
    Karar, A.
    Das, Narottam
    Tan, C.
    Alameh, K.
    Lee, Y.
    Karouta, F.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Karar, A. and Das, N. and Tan, C. and Alameh, K. and Lee, Y. and Karouta, F. 2011. High-responsivity plasmonics-based GaAs metal-semiconductor-metal photodetectors. Applied Physics Letters. 99 (13): pp. 133112-1-133112-3.
    Source Title
    Applied Physics Letters
    DOI
    10.1063/1.3625937
    ISSN
    00036951
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/22875
    Collection
    • Curtin Research Publications
    Abstract

    We report the experimental characterization of high-responsivity plasmonics-based GaAsmetal-semiconductor-metalphotodetector (MSM-PD) employing metal nano-gratings. Both the geometry and light absorption near the designed wavelength are theoretically and experimentally investigated. The measured photocurrent enhancement is 4-times in comparison with a conventional single-slit MSM-PD. We observe reduction in the responsivity as the bias voltage increases and the input light polarization varies. Our experimental results demonstrate the feasibility of developing a high-responsivity, low bias-voltage high-speed MSM-PD.

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