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Nanoscale Generation of White Light for Ultrabroadband Nanospectroscopy

  • S. V. Makarov*
  • , I. S. Sinev
  • , V. A. Milichko
  • , F. E. Komissarenko
  • , D. A. Zuev
  • , E. V. Ushakova
  • , I. S. Mukhin
  • , Y. F. Yu
  • , A. I. Kuznetsov
  • , P. A. Belov
  • , I. V. Iorsh
  • , A. N. Poddubny
  • , A. K. Samusev
  • , Yu S. Kivshar
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    69 Citations (Scopus)

    Abstract

    Achieving efficient localization of white light at the nanoscale is a major challenge due to the diffraction limit, and nanoscale emitters generating light with a broadband spectrum require complicated engineering. Here we suggest a simple, yet highly efficient, nanoscale white-light source based on a hybrid Si/Au nanoparticle with ultrabroadband (1.3-3.4 eV) spectral characteristics. We incorporate this novel source into a scanning-probe microscope and observe broadband spectrum of photoluminescence that allows fast mapping of local optical response of advanced nanophotonic structures with submicron resolution, thus realizing ultrabroadband near-field nanospectroscopy.

    Original languageEnglish
    Pages (from-to)535-539
    Number of pages5
    JournalNano Letters
    Volume18
    Issue number1
    DOIs
    Publication statusPublished - 10 Jan 2018

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