Focusing surface plasmons with a plasmonic lens

Zhaowei Liu, Jennifer M. Steele, Werayut Srituravanich, Yuri Pikus, Cheng Sun, Xiang Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

501 Scopus citations

Abstract

We report the focusing of surface plasmon polaritons by circular and elliptical structures milled into optically thick metallic films or plasmonic lenses. Both theoretical and experimental data for the electromagnetic nearfield is presented. The nearfield is mapped experimentally using nearfield scanning optical microscopy and plasmonic lithography. We find that the intensity at the focal points of the plasmonic lenses increases with size.

Original languageEnglish (US)
Pages (from-to)1726-1729
Number of pages4
JournalNano letters
Volume5
Issue number9
DOIs
StatePublished - Sep 1 2005

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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