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 language | English |
|---|---|
| Pages (from-to) | 535-539 |
| Number of pages | 5 |
| Journal | Nano Letters |
| Volume | 18 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 10 Jan 2018 |
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