Mode manipulation and near-THz absorptions in binary grating-graphene layer structures

نویسندگان

  • Haiming Yuan
  • Hanning Yang
  • Pengzi Liu
  • Xiangqian Jiang
  • Xiudong Sun
چکیده

The excitation and absorption properties of grating coupled graphene surface plasmons were studied. It was found that whether a mode can be excited is mainly determined by the frequency of incident light and the duty ratio of gratings. In the structure consisting graphene bilayer, a blueshift of the excitation frequency existed when the distance between neighbor graphene layer were decreased gradually. In graphene-grating multilayer structures, a strong absorption (approximately 90% at maximum) was found in near-THz range.

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عنوان ژورنال:

دوره 9  شماره 

صفحات  -

تاریخ انتشار 2014