期刊
ACS PHOTONICS
卷 4, 期 8, 页码 2036-2046出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.7b00423
关键词
high-index dielectric nanoparticles; silicon photonics; nanowires; directional light scattering; Kerker's condition; Mie resonances
类别
资金
- Programme Investissements d'Avenir [ANR-11-IDEX-0002-02, ANR-10-LABX-0037-NEXT]
- LAAS-CNRS micro and nanotechnologies platform member of the French RENATECH network
- Region Midi-Pyrenees
- computing facility center CALMIP of the University of Toulouse [P12167]
- Austrian Science Fund (FWF) [P12167] Funding Source: Austrian Science Fund (FWF)
It has been experimentally demonstrated only recently that a simultaneous excitation of interfering electric and magnetic resonances can lead to unidirectional scattering of visible light in zero-dimensional dielectric nanoparticles. We show both theoretically and experimentally, that strongly anisotropic scattering also occurs in individual dielectric nanowires. The effect occurs even under either pure transverse electric or pure transverse magnetic polarized normal illumination. This allows for instance to toggle the scattering direction by a simple rotation of the incident polarization. Finally, we demonstrate that directional scattering is not limited to cylindrical cross sections but can be further tailored by varying the shape of the nanowires.
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