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arXiv 0711.0183physics.optics
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通过变换光学实现光的工程空间

Engineering Space for Light via Transformation Optics

Alexander V. Kildishev, Vladimir M. Shalaev

摘要:

概念研究和数值模拟进行成像设备,将近场图案放大的远区图像,并基于高阶空间变换在圆柱域。考虑了一种将近场图像从近似圆形的输入边界平移到平坦输出边界处的放大远场图像上的透镜。透镜由具有各向异性介电常数和磁导率的超材料制成,这两者都取决于变换的单个“缩放”参数。提出并分析了截断体透镜的开放式设计(“3/4体”和“1/4体”透镜)。结果表明,理想的全透镜和“3/4体”透镜产生相同的图像。1/4体设计的数值模拟表明,进一步截断透镜可能会限制其性能。一个光集中器,“聚焦”到一个纳米级的区域远区字段,也被认为是。

英文摘要:

Conceptual studies and numerical simulations are performed for imaging devices that transform a near-field pattern into magnified far-zone images and are based on high-order spatial transformation in cylindrical domains. A lens translating a near-field pattern from an almost circular input boundary onto a magnified far-field image at a flat output boundary is considered. The lens is made of a metamaterial with anisotropic permittivity and permeability both depending on a single 'scaling' parameter of the transformation. Open designs of the lens with a truncated body ('3/4-body' and '1/4-body' lenses) are suggested and analyzed. It is shown that the ideal full-lens and the '3/4-body' lens produce identical images. Numerical simulations of '1/4-body' designs indicate that further truncation of the lens could limit its per-formance. A light concentrator, "focusing" far-zone fields into a nanometer-scale area, is also considered.

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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