Journal
NANO LETTERS
Volume 18, Issue 1, Pages 535-539Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b04542
Keywords
Nonlinear nanophotonics; white light emission; nanoparticles; near-field microscopy
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Funding
- Russian Science Foundation [17-19-01532]
- Ministry of Education and Science of Russian Federation [14.Y26.31.0010]
- Australian Research Council
- A*STAR SERC Pharos program (Singapore) [152 73 00025]
- Russian Science Foundation [17-19-01532] Funding Source: Russian Science Foundation
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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.
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