Surface plasmon polariton-controlled tunable quantum-dot emission

R.J. Moerland, H.T. Rekola, Gaurav Sharma, A.P. Eskelinen, A.I. Väkeväinen, P. Törmä

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)
295 Downloads (Pure)

Abstract

The unique properties of surface plasmonpolaritons, such as strong field confinement and local field enhancement effects, make them ideal candidates to enhance and shape the emission of luminescent nanoparticles. Of these nanoparticles,quantum dots are highly versatile, suitable for vastly different applications due to their size and material tunability. In many cases however, the emission wavelength of the quantum dots is fixed after manufacturing, allowing no control over the in situ emission properties. Here, we show fully optical, in situ tunability of the emission wavelength of quantum dots, with shifts of over 30 nm, employing surface plasmonpolaritons to control the emission wavelength.
Original languageEnglish
Article number221111
Pages (from-to)1-4
Number of pages4
JournalApplied Physics Letters
Volume100
Issue number22
DOIs
Publication statusPublished - 2012
MoE publication typeA1 Journal article-refereed

Keywords

  • nanoparticles
  • photoluminescence
  • polaritons
  • quantum dots
  • surface plasmons

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