Active spatial control of plasmonic fields

Bergin Gjonaj, Jochen Aulbach, Jochen Aulbach, Patrick M. Johnson, Allard Mosk, L. Kuipers, L. Kuipers, Ad Lagendijk, Aart Lagendijk

Research output: Contribution to journalArticleAcademicpeer-review

121 Citations (Scopus)

Abstract

The field of plasmonics1 offers a route to control light fields with metallic nanostructures through the excitation of surface plasmon polaritons2. These surface waves, bound to a metal dielectric interface, can tightly confine electromagnetic energy3. Active control over surface plasmon polaritons has potential for applications in sensing4, photovoltaics5, quantum communication6, 7, nanocircuitry8, 9, metamaterials10, 11 and super-resolution microscopy12. We achieve here active control of plasmonic fields using a digital spatial light modulator. Optimizing the plasmonic phases through feedback, we focus surface plasmon polaritons at a freely prechosen point on the surface of a nanohole array. Digital addressing and scanning of surface plasmon polaritons without mechanical motion may enable novel interdisciplinary applications of advanced plasmonic devices in cell microscopy, optical data storage and sensing.
Original languageEnglish
Pages (from-to)360-363
Number of pages3
JournalNature photonics
Volume6
DOIs
Publication statusPublished - 2011

Keywords

  • IR-104539
  • METIS-281086

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