Eficiencia y Homogeneidad espacial de la señal SERS en antenas plasm´onicas: Un estudio a escala nano y micro: Efficiency and Spatial homogeneity of the SERS signal in plasmonic antennas: A study at the nano and micro scales

Luis Alfonso Guerra Hernández; Oslen Dilayder Jaimes Suarez; Jorge-Enrique Rueda-Parada

doi:10.24054/bistua.v22i2.3338

Authors

Luis Alfonso Guerra Hernández Universidad de Pamplona, Grupo Óptica Moderna https://orcid.org/0000-0002-7580-9539
Oslen Dilayder Jaimes Suarez Grupo de investigación Óptica Moderna (GOM)-Minciencias, Departamento de F´ísica, Facultad de Ciencias Básicas, Universidad de Pamplona, Colombia. https://orcid.org/0000-0001-8687-3387
Jorge-Enrique Rueda-Parada Grupo de investigación Óptica Moderna (GOM)-Minciencias, Departamento de F´ísica, Facultad de Ciencias Básicas, Universidad de Pamplona, Colombia. https://orcid.org/0000-0003-2355-3110

DOI:

https://doi.org/10.24054/bistua.v22i2.3338

Keywords:

Optical antennas, Raman spectroscopy, plasmonics

Abstract

This study evaluates the efficiency and spatial homogeneity of the SERS signal in various gold optical antenna morphologies using 4-MBA as a probe molecule. The results demonstrate that AuFON antennas exhibit significantly higher SERS intensity compared to rough surfaces, spherical cavities, and the commercial Klarite system. Additionally, both AuFON and Klarite show improved signal homogeneity. These findings highlight the critical role of ordered nanostructure morphology in enhancing SERS signal amplification and uniformity, positioning AuFON as a promising platform for advanced ultrasensitive molecular detection applications.

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Author Biographies

Luis Alfonso Guerra Hernández, Universidad de Pamplona, Grupo Óptica Moderna

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Oslen Dilayder Jaimes Suarez, Grupo de investigación Óptica Moderna (GOM)-Minciencias, Departamento de F´ísica, Facultad de Ciencias Básicas, Universidad de Pamplona, Colombia.

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Jorge-Enrique Rueda-Parada, Grupo de investigación Óptica Moderna (GOM)-Minciencias, Departamento de F´ísica, Facultad de Ciencias Básicas, Universidad de Pamplona, Colombia.

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Efficiency and Spatial homogeneity of the SERS signal in plasmonic antennas: A study at the nano and micro scales