Nanoscale Generation of White Light for Ultrabroadband Nanospectroscopy
Date
2018
Authors
Makarov, Sergey
Sinev, Ivan S
Milichko, Valentin A
Komissarenko, Filipp
Zuev, DA
Ushakova, Elena V
Mukhin, I. S.
Yu, Ye Feng
Kuznetsov, Arseniy I
Belov, Pavel
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Volume Title
Publisher
American Chemical Society
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.
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Keywords
Nonlinear nanophotonics, white light emission, nanoparticles, near-field microscopy
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Source
Nano Letters
Type
Journal article
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Open Access
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