Surface-enhanced Raman scattering (SERS) as probe of plasmonic near-field resonances |
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Affiliation: | 1. Center for Computational Natural Sciences and Bioinformatics (CCNSB), International Institute of Information Technology, Hyderabad, Telangana 500 032, India;2. On lien from Department of Physics, Koneru Lakshmaiah Education Foundation, Green Fields, Vaddeswaram, Guntur, Andhra Pradesh 522 502, India;1. Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. dos Estados 5001, Santo André, SP 09210-580, Brazil;2. Center for Lasers and Applications, Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, SP 05508-000, Brazil;1. Laboratório de Química de Calixarenos, Espectroscopia Molecular e Catálise (LQCEMC), Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Rua Prof. Arthur Riedel, 275, CEP 09972-270, Diadema, SP, Brazil;2. Laboratório de Espécies Químicas Altamente Reativas (LQBEAR), Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Rua Prof. Arthur Riedel, 275, CEP 09972-270, Diadema, SP, Brazil |
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Abstract: | Near-field plasmonic properties are fundamental for the various applications of metal nanoparticles. In this sense, a characterization of such properties is essential for a better understanding of the electromagnetic interactions probed by the materials. In this manuscript we discuss the possibility of using surface-enhanced Raman scattering (SERS) as a possible experimental probe of near-field resonance properties of metal nanoparticles aggregates. In this specific case, we investigate both, theoretically and experimentally, the behavior of broad and narrow near-field enhancement resonances in the SERS spectra of adsorbed molecules. We believe the results presented here may open new possibilities and insights in plasmonic nanoparticle properties characterization for different applications. |
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Keywords: | SERS Plasmon Near-field Fano resonance |
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