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Resonant Raman scattering from silicon nanoparticles enhanced by magnetic response

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Date

2016

Authors

Dmitriev, Pavel A.
Baranov, Denis G.
Milichko, Valentin A.
Makarov, Sergey V.
Mukhin, Ivan S.
Samusev, Anton K.
Krasnok, Alexander E.
Belov, Pavel A.
Kivshar, Yuri

Journal Title

Journal ISSN

Volume Title

Publisher

Royal Society of Chemistry

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.

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Citation

URI

http://hdl.handle.net/1885/108606

Collections

ANU Research Publications

Source

Nanoscale

Type

Journal article

Book Title

Entity type

Access Statement

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DOI

10.1039/C5NR07965A

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