Abstract
Raman scattering spectroscopy has been widely used to analyze molecular structures of materials. Surface enhanced Raman scattering (SERS) is a surface-sensitive technique that enhances Raman scattering by molecules adsorbed on rough or nanostructured metal surfaces [1]. Nanoparticles have surface plasmon resonance (SPR) which is caused by the interaction of incident light with the plasmon in the particles [2]. Enhancement of Raman scattering is expected by the local electric field which is generated around the particles due to SPR. In this study, magnesium fluoride films dispersed with silver nanoparticles were prepared by the sol-gel technique. Enhancements of Raman scattering signals of several specimens adsorbed on these composite materials were observed and discussed about the detection limits of the specimens.
© 2015 Japan Society of Applied Physics, Optical Society of America
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