Schmied Roman, Halimeh Jad C, Wegener Martin
Departement Physik, Universität Basel, Switzerland.
Opt Express. 2010 Nov 8;18(23):24361-7. doi: 10.1364/OE.18.024361.
We introduce a class of conformal versions of the previously introduced quasi-conformal carpet cloak, and show how to construct such conformal cloaks for different cloak shapes. Our method provides exact refractive-index profiles in closed mathematical form for the usual carpet cloak as well as for other shapes. By analyzing their asymptotic behavior, we find that the performance of finite-size cloaks becomes much better for metal shapes with zero average value, e.g., for gratings.
我们引入了一类先前介绍的准共形地毯隐身衣的共形版本，并展示了如何针对不同的隐身衣形状构造此类共形隐身衣。我们的方法以封闭的数学形式为常规地毯隐身衣以及其他形状提供了精确的折射率分布。通过分析它们的渐近行为，我们发现对于平均值为零的金属形状，例如光栅，有限尺寸隐身衣的性能会变得更好。
