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Updated: Feb 13, 2026

Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
Published on: June 23, 2022
Plasmon-Induced Magnetic Resonance Enhanced Raman Spectroscopy
Shu Chen1, Yuejiao Zhang2, Tien-Mo Shih1
1Department of Physics, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices , Xiamen University , Xiamen 361005 , China.
Abstract:
Plasmon-induced magnetic resonance has shown great potentials in optical metamaterials, chemical (bio)-sensing, and surface-enhanced spectroscopies. Here, we have theoretically and experimentally revealed (1) a correspondence of the strongest near-field response to the far-field scattering valley and (2) a significant improvement in Raman signals of probing molecules by the plasmon-induced magnetic resonance. These revelations are accomplished by designing a simple and practical metallic nanoparticle-film plasmonic system that generates magnetic resonances at visible-near-infrared frequencies. Our work may provide new insights for understanding the enhancement mechanism of various plasmon-enhanced spectroscopies and also helps further explore light-matter interactions at the nanoscale.
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