• 文献标题:   Flexible modulation of plasmon-induced transparency in a strongly coupled graphene grating-sheet system
  • 文献类型:   Article
  • 作  者:   LUO WW, CAI W, XIANG YX, WANG L, REN MX, ZHANG XZ, XU JJ
  • 作者关键词:  
  • 出版物名称:   OPTICS EXPRESS
  • ISSN:   1094-4087
  • 通讯作者地址:   Nankai Univ
  • 被引频次:   24
  • DOI:   10.1364/OE.24.005784
  • 出版年:   2016

▎ 摘  要

General actively tunable near-field plasmon-induced transparency (PIT) systems based on couplings between localized plasmon resonances of graphene nanostructures not only suffer from interantenna separations of smaller than 20 nm, but also lack switchable effect about the transparency window. Here, the performance of an active PIT system based on graphene grating-sheet with near-field coupling distance of more than 100 nm is investigated in mid-infrared. The transparency window in spectrum is analyzed objectively and proved to be more likely stemmed from Aulter-Townes splitting. The proposed system exhibits flexible tunability in slow-light and electro-optical switches, promising for practical active photonic devices. (C) 2016 Optical Society of America