Probing magnetic and electric optical responses of silicon nanoparticles

Probing magnetic and electric optical responses of silicon nanoparticles
Title:
Probing magnetic and electric optical responses of silicon nanoparticles
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APPLIED PHYSICS LETTERS
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Publication Date:
29 April 2015
Citation:
Applied Physics Letters 106, 171110 (2015)
Abstract:
We study experimentally both magnetic and electric optically induced resonances of silicon nanoparticles by combining polarization-resolved dark-field spectroscopy and near-field scanning optical microscopy measurements. We reveal that the scattering spectra exhibit strong sensitivity of electric dipole response to the probing beam polarization and attribute the characteristic asymmetry of measured near-field patterns to the excitation of a magnetic dipole mode. The proposed experimental approach can serve as a powerful tool for the study of photonic nanostructures possessing both electric and magnetic optical responses.
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Description:
Copyright (2015) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 106, 171110 (2015) and may be found at http://dx.doi.org/10.1063/1.4919536.
ISSN:
0003-6951
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