Journal
OPTICS EXPRESS
Volume 22, Issue 13, Pages 16178-16187Publisher
Optica Publishing Group
DOI: 10.1364/OE.22.016178
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Funding
- National Natural Science Foundation of China [11304389, 61205141]
- Basic Research Scheme of College of Optoelectronic Science and Engineering, National University of Defense Technology
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We study the angular scattering properties of individual core-shell nanoparticles that support simultaneously both electric and optically-induced magnetic resonances of different orders. In contrast to the approach to suppress the backward scattering and enhance the forward scattering relying on overlapping electric and magnetic dipoles, we reveal that the directionality of the forward scattering can be further improved through the interferences of higher order electric and magnetic modes. Since the major contributing electric and magnetic responses can be tuned to close magnitudes, ultra-directional forward scattering can be achieved by single nanoparticles without compromising the feature of backward scattering suppression, which may offer new opportunities for , photovoltaic devices, bio-sensing and many other interdisciplinary researches. (C) 2014 Optical Society of America
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