Affordable Access

Nanofocusing of light using three-dimensional plasmonic mode conversion

Authors
  • An, Shinmo
  • Lee, Hyun-Shik
  • Jeong, Yong-Beom
  • Jun, Young Chul
  • Lee, Seung Gol
  • Park, Se-Guen
  • Lee, El-Hang
  • Beom-Hoan, O.
Publication Date
Nov 01, 2013
Source
ScholarWorks@UNIST
Keywords
Language
English
License
Unknown
External links

Abstract

Efficient nanofocusing of light into a gap plasmon waveguide using three-dimensional mode conversion in a strip plasmonic directional coupler is proposed. Unlike conventional nanofocusing using tapering structures, a plasmonic directional coupler converts E-z-type odd mode energy into E-y-type gap plasmon mode by controlling phase mismatch and gap spacing. The simulation result shows the maximum electric field intensity increases up to 58.1 times the input intensity, and 17.3% of the light is focused on the nano gap region. (C) 2013 Optical Society of Americ / close / 0 / 0

Report this publication

Statistics

Seen <100 times