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arXiv · 2406.13962

Analyzing Near-Field Intensity Distribution in Subwavelength Gratings through Cylindrical Wave Decomposition

A. S. Bereza·A. E. Chernyavsky·S. V. Perminov·D. A. Shapiro
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Abstract

The investigation into the scattering of plane waves by a periodic array of parallel cylinders utilizes the method of cylindrical wave decomposition, thereby reducing the problem complexity to a series of linear algebraic equations. This methodology proves particularly efficacious when the diameter of cylinders is significantly less than the wavelength of incident wave, resulting in a rapid diminution of the solution coefficients as a function of azimuth numbers. Such a reductionist approach facilitates the computation of scattered radiation intensity in near field. Subsequent cross-validation with numerical results corroborates the theoretical findings, showcasing a qualitative concordance between the two. This study underscores the efficacy of cylindrical wave decomposition in simplifying and accurately modeling wave scattering phenomena in structured media.

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A. S. Bereza, A. E. Chernyavsky, S. V. Perminov, D. A. Shapiro. 2024-06-20. Analyzing Near-Field Intensity Distribution in Subwavelength Gratings through Cylindrical Wave Decomposition. https://arxiv.org/abs/2406.13962

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