用精确的数值方法模拟波长大小的二维透镜

Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488) Pub Date : 2001-06-18 DOI:10.1109/ICTON.2001.934758

A. Boriskin, A. Nosich, A. Altintas

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引用次数: 0

摘要

研究了任意形状的介质圆柱体作为介质透镜的二维模型对局部光源指向性改善的影响。用复杂震源点(CSP)的场来模拟震源。基于解析正则化的概念，提出了一种求解光滑介质圆柱体二维波散射问题的有效算法。研究了该算法的基本性质。给出了算法精度和样品远场特性(如总辐射功率、指向性和不同透镜参数下的辐射方向图)的数值结果。

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Simulating a wavelength-size 2-D lens with an accurate numerical method

The effect of a localized light source directivity improvement due to an arbitrarily shaped dielectric cylinder taken as a 2-D model of a dielectric lens is studied. The source is simulated by the field of a complex source-point (CSP). An efficient algorithm for the solution of 2-D problem of wave scattering by a smooth dielectric cylinder is developed, based on the concept of analytical regularization. The basic properties of the algorithm are studied. Numerical results for the accuracy of the algorithm and sample far-field characteristics such as the total radiated power, directivity and radiation patterns for various lens parameters are presented.

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Proceedings of 2001 3rd International Conference on Transparent Optical Networks (IEEE Cat. No.01EX488)

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