Broadband directional scattering through a phase difference acquired in composite nanoparticles
article
We study the broadband scattering of light by composite nanoparticles through the Born approximation, FEM simulations, and measurements. The particles consist of two materials and show broadband directional scattering. From the analytical approach and the subsequent FEM simulations, it was found that the directional scattering is due to the phase difference between the fields scattered by of each of the two materials of the nanoparticle. To confirm this experimentally, composite nanoparticles were produced using ion-beam etching. Measurements of SiO2 / Au composite nanoparticles confirmed the directional scattering which was predicted by theory and simulations.
Topics
TNO Identifier
991642
ISSN
10944087
Source
Optics Express, 31(23), pp. 38815-38830.
Publisher
Optica Publishing Group
Collation
16 p.
Pages
38815-38830
Files
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