A simple naive treatment of the enhancement of Raman scattering due to the presence of a two-dimensional array of metallic spheroids has been worked out as an extension of the existing particle-plasmon model. Calculated results, which are based on the r^-3 term of dipolar fields, conform to the experiment. Comparisons and discussions show that this treatment, rather complete and accurate within the r^-3 regime, provides the basic understanding of the physics of the spheroidal array experiment and also can serve to justify the existing single-spheroid approximations.
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Chu et al. (1985) studied this question.
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