Enhance transmission through a nano-slit bordered by both trenches and bumps nanostructures

C. M. Wang, C. C. Chao, J. Y. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A very large transmission, 20%, of light through a nano metallic slit bordered by both nano trenches and bumps has been demonstrated theoretically. The trenches bordering the nano slit, are used to excite free-space light into surface waves, while the bumps bordering the trenches are used to confine surface wave leakage. Over 50% of the escaping surface waves can be reclaimed by using a pair of bumps with a reflectivity larger than 99%. As a result, the transmission of a trench-surrounded slit bordered by a pair of bumps can be enhanced 1.5 fold.

Original languageEnglish
Title of host publicationPlasmonics
Subtitle of host publicationNanoimaging, Nanofabrication, and their Applications II
DOIs
StatePublished - 2006
EventPlasmonics: Nanoimaging, Nanofabrication, and their Applications II - San Diego, CA, United States
Duration: 16 Aug 200617 Aug 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6324
ISSN (Print)0277-786X

Conference

ConferencePlasmonics: Nanoimaging, Nanofabrication, and their Applications II
Country/TerritoryUnited States
CitySan Diego, CA
Period16/08/0617/08/06

Keywords

  • Apertures
  • Diffraction theory
  • Surface waves

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