Abstract
Surface-Enhanced Raman Spectroscopy (SERS) is based on the amplification of Raman signals. One of the enhancement mechanisms is explained by the plasmon resonance of metal nanostructures. This work consists of the computational calculation, using Mie theory, of the Local Field Enhancement Factor (LFIEF) and the SERS Enhancement Factor (SERS EF) for an electric dipole signal close to a single metallic nanosphere (NP). Different sizes of silver, gold and aluminum NP suspended in ethanol, N,N-dimethylformamide, and chloroform were analyzed. The results show that the intensification peak agrees with the excitation wavelength for the respective plasmon resonance of each metal. It is evident that the size of the NP influences the magnitude of the intensity obtained; in addition, it is observed that the medium in which they are suspended produces a shift of the intensification peaks.
| Translated title of the contribution | Computational calculations of local field and SERS enhancement factors using Mie theory |
|---|---|
| Original language | English |
| Article number | 51082 |
| Journal | Optica Pura y Aplicada |
| Volume | 55 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2022 |
Bibliographical note
Publisher Copyright:© Sociedad Española de Óptica
Keywords
- Computational calculation
- Enhancement
- Local field
- Mie’s theory
- Sers
Types Minciencias
- Artículos de investigación con calidad Q4
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