• 文献标题:   Resonant enhancement of evanescent waves with graphene and double-negative materials in the visible regime
  • 文献类型:   Article
  • 作  者:   AZAMI D, ABDULKAREEM SS, HASSANZADEH A
  • 作者关键词:   doublenegative material, evanescent wave, graphene
  • 出版物名称:   JOURNAL OF NANOPHOTONICS
  • ISSN:   1934-2608
  • 通讯作者地址:   Univ Kurdistan
  • 被引频次:   0
  • DOI:   10.1117/1.JNP.14.036003
  • 出版年:   2020

▎ 摘  要

We theoretically investigate the enhancement of the evanescent waves near the surface of a prism coated with several layers of metals, graphene, and double negative materials. The thicknesses of the metals and double negative material films along with the number of graphene layers are optimized to achieve the highest enhancement factor. We show that the intensity of the evanescent wave in the proposed resonance structure is about 10(9) times higher than that of a bare prism. A comparison between our results and those reported in the literature indicates a 10(4) times amplification of the evanescent field intensities. This amplification can open a new window to manipulate attached biological cells, design perfect atom mirrors, and apply an effective force on nano- and microparticles for the purpose of manipulation and trapping. The effect of the optimization of the involved parameters on the results shows the importance of these theoretical and simulation results, which leads to the reduction in time and costs of experimental works. (C) 2020 Society of Photo-Optical Instrumentation Engineers (SPIE)