Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 3047-3053 |
| Seitenumfang | 7 |
| Fachzeitschrift | Nano letters |
| Jahrgang | 17 |
| Ausgabenummer | 5 |
| Publikationsstatus | Veröffentlicht - 14 Apr. 2017 |
| Extern publiziert | Ja |
Abstract
Recent trends to employ high-index dielectric particles in nanophotonics are motivated by their reduced dissipative losses and large resonant enhancement of nonlinear effects at the nanoscale. Because silicon is a centrosymmetric material, the studies of nonlinear optical properties of silicon nanoparticles have been targeting primarily the third-harmonic generation effects. Here we demonstrate, both experimentally and theoretically, that resonantly excited nanocrystalline silicon nanoparticles fabricated by an optimized laser printing technique can exhibit strong second-harmonic generation (SHG) effects. We attribute an unexpectedly high yield of the nonlinear conversion to a nanocrystalline structure of nanoparticles supporting the Mie resonances. The demonstrated efficient SHG at green light from a single silicon nanoparticle is 2 orders of magnitude higher than that from unstructured silicon films. This efficiency is significantly higher than that of many plasmonic nanostructures and small silicon nanoparticles in the visible range, and it can be useful for a design of nonlinear nanoantennas and silicon-based integrated light sources.
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in: Nano letters, Jahrgang 17, Nr. 5, 14.04.2017, S. 3047-3053.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Efficient Second-Harmonic Generation in Nanocrystalline Silicon Nanoparticles
AU - Makarov, Sergey V.
AU - Petrov, Mihail I.
AU - Zywietz, Urs
AU - Milichko, Valentin
AU - Zuev, Dmitry
AU - Lopanitsyna, Natalia
AU - Kuksin, Alexey
AU - Mukhin, Ivan
AU - Zograf, George
AU - Ubyivovk, Evgeniy
AU - Smirnova, Daria A.
AU - Starikov, Sergey
AU - Chichkov, Boris N.
AU - Kivshar, Yuri S.
N1 - Funding information: The authors are thankful to Professor Nicolae Panoiu, Dr. Alexandr Gudovskikh, and Maxim Gorlach for useful discussions. Atomistic numerical calculations have been carried out on the computer clusters MVS-100 K of Joint Supercomputer Center RAS and “Lomonosov” of the Moscow State University. TEM data was obtained using the equipment of the Interdisciplinary Resource Centre for Nanotechnology of St. Petersburg State University (Russia). An experimental part has been supported by the Russian Science Foundation (Grant 15- 19-00172) and by the project CH179/34-1 of the German Research Foundation (Deutsche Forschungsgemeinschaft, DFG). A theoretical part has been supported by the Ministry of Education and Science of the Russian Federation (Grant 14.Y26.31.0010), and the Australian Research Council. S.V.M. acknowledges the ITMO Fellowship Program.
PY - 2017/4/14
Y1 - 2017/4/14
N2 - Recent trends to employ high-index dielectric particles in nanophotonics are motivated by their reduced dissipative losses and large resonant enhancement of nonlinear effects at the nanoscale. Because silicon is a centrosymmetric material, the studies of nonlinear optical properties of silicon nanoparticles have been targeting primarily the third-harmonic generation effects. Here we demonstrate, both experimentally and theoretically, that resonantly excited nanocrystalline silicon nanoparticles fabricated by an optimized laser printing technique can exhibit strong second-harmonic generation (SHG) effects. We attribute an unexpectedly high yield of the nonlinear conversion to a nanocrystalline structure of nanoparticles supporting the Mie resonances. The demonstrated efficient SHG at green light from a single silicon nanoparticle is 2 orders of magnitude higher than that from unstructured silicon films. This efficiency is significantly higher than that of many plasmonic nanostructures and small silicon nanoparticles in the visible range, and it can be useful for a design of nonlinear nanoantennas and silicon-based integrated light sources.
AB - Recent trends to employ high-index dielectric particles in nanophotonics are motivated by their reduced dissipative losses and large resonant enhancement of nonlinear effects at the nanoscale. Because silicon is a centrosymmetric material, the studies of nonlinear optical properties of silicon nanoparticles have been targeting primarily the third-harmonic generation effects. Here we demonstrate, both experimentally and theoretically, that resonantly excited nanocrystalline silicon nanoparticles fabricated by an optimized laser printing technique can exhibit strong second-harmonic generation (SHG) effects. We attribute an unexpectedly high yield of the nonlinear conversion to a nanocrystalline structure of nanoparticles supporting the Mie resonances. The demonstrated efficient SHG at green light from a single silicon nanoparticle is 2 orders of magnitude higher than that from unstructured silicon films. This efficiency is significantly higher than that of many plasmonic nanostructures and small silicon nanoparticles in the visible range, and it can be useful for a design of nonlinear nanoantennas and silicon-based integrated light sources.
KW - crystallization kinetics
KW - dielectric nanoantennas
KW - magnetic dipole resonance
KW - Mie scattering
KW - Nonlinear nanophotonics
KW - second-harmonic generation
KW - silicon nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=85019202531&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.7b00392
DO - 10.1021/acs.nanolett.7b00392
M3 - Article
C2 - 28409641
AN - SCOPUS:85019202531
VL - 17
SP - 3047
EP - 3053
JO - Nano letters
JF - Nano letters
SN - 1530-6984
IS - 5
ER -