Phase study of the generated surface plasmon waves in light transmission through a subwavelength aperture

Mahdieh Hashemi, Sanshui Xiao, Mahmood Hosseini Farzad

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Interference of surface plasmon (SP) waves plays a key role in light transmission through a subwavelength aperture surrounded by groove structures. In order to characterize interference of the hole and groove-generated SP waves, their phase information was carefully investigated using finite difference time domain simulations. In a structure with only one groove, constructive interference of the generated SP waves will enhance transmitted light by a factor of 5.4 compared with that of a single hole. Increasing the groove number to 3 in the design, which supports constructive interference of SP waves, will enhance the transmission coefficient to 10.5 times that for the single-hole transmission coefficient.
Original languageEnglish
Article number083094
JournalJournal of Nanophotonics
Volume8
Issue number1
Number of pages8
ISSN1934-2608
DOIs
Publication statusPublished - 2014

Bibliographical note

Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Keywords

  • Surface plasmons
  • Hole-groove structures
  • Subwavelength structures
  • Enhanced transmission

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