e-Article
Direct observation of resonance scattering patterns in single silicon nanoparticles.
Document Type
Article
Author
Source
Subject
*SILICON
*NANOPARTICLES
*MAGNETIC dipoles
*ELECTRIC dipole transitions
*RESONANCE
*SCATTERING (Physics)
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Language
ISSN
0003-6951
Abstract
We present the first direct observation of the scattering patterns of electric and magnetic dipole resonances excited in a single silicon nanosphere. Almost perfectly spherical silicon nanoparticles were fabricated and deposited on a 30 nm-thick silicon nitride membrane in an attempt to minimize particle--substrate interaction. Measurements were carried out at visible wavelengths by means of the Fourier microscopy in a dark-field illumination setup. The obtained back-focal plane images clearly reveal the characteristic scattering patterns associated with each resonance and are found to be in a good agreement with the simulated results. [ABSTRACT FROM AUTHOR]