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arXiv 1902.08254physics.optics
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用于增强任意域中电磁波强度的变换光学实现的几何自由材料

Geometry free materials enabled by transformation optics for enhancing the intensity of electromagnetic waves in an arbitrary domain

Ali Abdolali, Hooman Barati Sedeh, Mohammad Hosein Fakheri

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5 pages, three figures
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摘要：

电磁波（EM）的集中在许多工程应用中（例如太阳能电池）是极其重要的。根据变换光学（TO）方法，提出了一种获得任意形状聚光器的可行方法。与以前的工作相反，所获得的材料是均匀的，并且与集中器的形状无关。也就是说，无论输入几何形状如何，总是使用一种恒定的材料，即光学零介质（ONM），并且器件的性能不会改变。这种能力将简化设计过程，并规避必要材料的复杂计算。为了验证这一概念，对不同形状的聚光器进行了几次数值全波模拟。结果表明，数值计算结果与理论研究结果吻合较好，验证了所提出设计方法的通用性和有效性。

英文摘要：

The concentration of electromagnetic waves (EM) is of utmost importance in many engineering applications such as solar-cells. According to the transformation optics (TO) methodology, a feasible approach for obtaining arbitrary shape concentrators is proposed. In contrary to the previous works, the obtained materials are homogeneous and independent of the concentrator shape. That is regardless of the input geometry always one constant material, which is optic-null medium (ONM), is used and the performance of device will not alter. This competency will ease the design process and circumvent the sophisticated calculations of the necessitating materials. To authenticate the concept, several numerical full-wave simulations were performed for different shape concentrators. It was observed that numerical results exhibit strong agreement with the theoretical investigations and corroborate the generality and effectiveness of the proposed designing method.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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