DataVXACS Applied Nano MaterialsPaper
journal article·2022-02-25Open access

Nanostructured Hyperbolic Metamaterials for Magnetoplasmonic Sensors

Brayan F. Díaz-Valencia, Nelson Porras-Montenegro, Osvaldo N. Oliveira, Jorge Ricardo Mejía-Salazar

ACS Applied Nano Materials· Volume 5· Issue 2
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Source abstract

Abstract

We demonstrate numerically a concept for highly integrated magnetoplasmonic biosensors made with nanostructured magnetooptical (MO) hyperbolic metamaterials (HMMs). The concept is based on the use of enhanced amplitudes of ultranarrow peaks of the transverse magnetooptical Kerr effect (TMOKE). In contrast to conventional magnetoplasmonic transducers that employ wide surface plasmon resonances, we use bulk plasmon polariton modes in HMMs. In sensing through changes in the refractive index of water, a figure of merit on the order of 8 × 102 was observed, to be compared with 590 for non-MO HMMs. This allows for improved resolution detection of low-molecular-weight analytes at concentrations on the order of picomolar.
Source: openalex_inverted_index · Quality: baseline

Research context

Nanomaterials

OpenAlex topics: Plasmonic and Surface Plasmon Research · Magneto-Optical Properties and Applications · Photonic and Optical Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Departamento de Física, Universidad del Valle, A.A 25360, Cali 760002, Colombia

Sao Carlos Institute of Physics, University of Sao Paulo, C.P. 369, Sao Carlos 13560-970, Sao Paulo, Brazil

National Institute of Telecommunications (Inatel), Santa Rita do Sapucaí 37540-000, Minas Gerais, Brazil

Funding

Departamento Administrativo de Ciencia, Tecnología e Innovación (COLCIENCIAS) · Rede Nacional de Ensino e Pesquisa · Conselho Nacional de Desenvolvimento Científico e Tecnológico · Fundação de Amparo à Pesquisa do Estado de São Paulo

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