Abstract

The inhomogeneity of crystalline or amorphous unit cells of material is treated by the numerical boundary element method. This paper is especially about the effect of perturbed refractive index (or potential energy) of a material on the light intensity inside a layered microsphere when it is irradiated by monochromatic unpolarized plane light wave. The resultant light intensities on the particle surface show noise-like fluctuations depending on various parameters such as the material refractive indices, the light wavelength, the particle and core size, the numerical surface element size, etc. Both the numerical results and the experiments from a few other groups agree that large light absorption occurs just in a small wavelength range.

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