Superfocusing by nanoshells.
Superfocusing by nanoshells.
复制标题
纳米壳的超聚焦。
作者：
I. Tsukerman
最近，研究人员从理论上和在微波范围内通过实验证明了图案板对倏逝波的亚波长聚焦。本信将这些想法和设计程序扩展到任意形状的散射体和光学波长范围。分析研究得到了数值结果的支持。该设计最有趣的特点是，在连续介质的经典电动力学框架中，聚焦原则上可以是任意锐度，但受到制造的限制。
Recently researchers demonstrated, both theoretically and in the microwave range experimentally, subwavelength focusing of evanescent waves by patterned plates. The present Letter extends these ideas and the design procedure to scatterers of arbitrary shapes and to the optical range of wavelengths. The analytical study is supported by numerical results. The most intriguing feature of the proposed design is that, in the framework of classical electrodynamics of continuous media, focusing can in principle be arbitrarily sharp, subject to the constraints of fabrication.
影响因子：
10.8
作者：
Huang, Fu Min;Zheludev, Nikolay I.
通讯作者：
Zheludev, Nikolay I.