2016/01/01 by Pavel A. Dmitriev, Denis G. Baranov, Valentin A. Milichko +6 · 153 citations
Biochemistry, Genetics and Molecular Biology · Materials Science · Physics and Astronomy · #Dielectric #Excitation #Gold and Silver Nanoparticles Synthesis and Applications #Magnetic nanoparticles #Nanoparticle #Raman scattering #Raman spectroscopy #Scattering #Silicon #Silicon Nanostructures and Photoluminescence #Spectroscopy Techniques in Biomedical and Chemical Research #physics.optics
paper · pdf · doi:10.1039/c5nr07965a
published in Nanoscale 8(18), 9721-9726 (Royal Society of Chemistry)
openalex publication_date 2016/01/01 · arxiv created 2016/01/14 · arxiv updated 2016/05/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.