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Issue 18, 2016
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Resonant Raman scattering from silicon nanoparticles enhanced by magnetic response

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Abstract

Enhancement of optical response with high-index dielectric nanoparticles is attributed to the excitation of their Mie-type magnetic and electric resonances. Here we study Raman scattering from crystalline silicon nanoparticles and reveal that magnetic dipole modes have a much stronger effect on the scattering than electric modes of the same order. We demonstrate experimentally a 140-fold enhancement of the Raman signal from individual silicon spherical nanoparticles at the magnetic dipole resonance. Our results confirm the importance of the optically-induced magnetic response of subwavelength dielectric nanoparticles for enhancing light–matter interactions.

Graphical abstract: Resonant Raman scattering from silicon nanoparticles enhanced by magnetic response

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Publication details

The article was received on 11 Nov 2015, accepted on 28 Mar 2016 and first published on 08 Apr 2016


Article type: Paper
DOI: 10.1039/C5NR07965A
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2016,8, 9721-9726
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    Resonant Raman scattering from silicon nanoparticles enhanced by magnetic response

    P. A. Dmitriev, D. G. Baranov, V. A. Milichko, S. V. Makarov, I. S. Mukhin, A. K. Samusev, A. E. Krasnok, P. A. Belov and Y. S. Kivshar, Nanoscale, 2016, 8, 9721
    DOI: 10.1039/C5NR07965A

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