Abstract:
This paper presents the results of studies on the application of the finite difference time domain (FDTD) method for
mathematical modeling of disturbances in the electric field strength near gold nanoparticles (NPs) of varying size under
irradiation with different excitation wavelengths $\lambda=532$, $\lambda=632$, $\lambda=785$ nm. The authors consider several types of gold NPs
differing in size. The values of the maximum electric field E value near the particle surface are calculated. These results can be
used in the future to simulate multilayer and gold-core nanostructure-optical sensors implemented based on the effect of giant
Raman scattering of light, used for the analysis of chemical compounds in low concentrations, macroscopic biological objects.
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