Surface enhanced Raman scattering of crystal violet

R. R. Jones; T. Batten; B. Smith; A. V. Silhanek; D. Wolverson; V. K. Valev

doi:10.1117/12.2590035

18 April 2021 Surface enhanced Raman scattering of crystal violet

R. R. Jones, T. Batten, B. Smith, A. V. Silhanek, D. Wolverson, V. K. Valev

Proceedings Volume 11770, Nonlinear Optics and Applications XII; 1177015 (2021) https://doi.org/10.1117/12.2590035
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

Despite the ubiquity of Raman spectroscopy, fluorescence, poor signal strength and photobleaching pose a significant challenge to researchers in the biomedical field. Here, we demonstrate a 17-fold signal enhancement in Raman spectra of crystal violet via surface-enhanced Raman scattering (SERS). The SERS substrate was fabricated by electron beam lithography (EBL); the nanostructured surface was an array of G-shaped elements made of Au on SiO2/Si. In addition to the SERS spectra, finite-difference time-domain simulations were performed to illustrate the distribution of electric-field hot-spots on the SERS substrate. The electric-field hot-spots were prominent at the vertices and edges of the nanostructured G-shaped motifs. The results presented here demonstrate that EBL is a high-end choice for SERS substrate fabrication that opens the way for more complex Raman spectroscopies, for instance involving nonlinear optics or chiral analytes.

Conference Presentation

Citation Download Citation

R. R. Jones, T. Batten, B. Smith, A. V. Silhanek, D. Wolverson, and V. K. Valev "Surface enhanced Raman scattering of crystal violet", Proc. SPIE 11770, Nonlinear Optics and Applications XII, 1177015 (18 April 2021); https://doi.org/10.1117/12.2590035

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