20-20 Feb. 2015

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  • Design and modelling of graphene based attenuator

    Publication Year: 2015, Page(s):1 - 3
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (283 KB)

    This paper presents the design of a tunable attenuator with under-layer graphene, where its transmission properties can be adjusted electrically. Its tunability comes from the varying conductivity of graphene biased by external voltage. The forward transmission varies more than 60% when voltage is applied to change chemical potential in the range 0-0.8eV. The promising results provide an alternati... View full abstract»

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  • Graphene as a novel single photon counting optical and ir photodetector

    Publication Year: 2015, Page(s):1 - 5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (637 KB)

    Bilayer graphene has many unique optoelectronic properties [1], including a tuneable band gap, that make it possible to develop new and more efficient optical and nanoelectronic devices. We have developed a Monte Carlo simulation for a single photon counting photodetector incorporating bilayer graphene. Our results show that, conceptually it would be feasible to manufacture a single photon countin... View full abstract»

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