• 文献标题:   Bloch Surface Waves Using Graphene Layers: An Approach toward In-Plane Photodetectors
  • 文献类型:   Article
  • 作  者:   DUBEY R, MARCHENA M, LAHIJANI BV, KIM MS, PRUNERI V, HERZIG HP
  • 作者关键词:   multilayer platform, graphene, optics at the surface, bloch surface wave, scanning nearfield optical microscopy, surface wave, twodimensional optic, optical characterization
  • 出版物名称:   APPLIED SCIENCESBASEL
  • ISSN:   2076-3417
  • 通讯作者地址:   Ecole Polytech Fed Lausanne
  • 被引频次:   4
  • DOI:   10.3390/app8030390
  • 出版年:   2018

▎ 摘  要

A dielectric multilayer platform was investigated as a foundation for two-dimensional optics. In this paper, we present, to the best of our knowledge, the first experimental demonstration of absorption of Bloch surface waves in the presence of graphene layers. Graphene is initially grown on a Cu foil via Chemical Vapor Deposition and transferred layer by layer by a wet-transfer method using poly(methyl methacrylate), (PMMA). We exploit total internal reflection configuration and multi-heterodyne scanning near-field optical microscopy as a far-field coupling method and near-field characterization tool, respectively. The absorption is quantified in terms of propagation lengths of Bloch surface waves. A significant drop in the propagation length of the BSWs is observed in the presence of graphene layers. The propagation length of BSWs in bare multilayer is reduced to 17 times shorter in presence of graphene monolayer, and 23 times shorter for graphene bilayer.