Guenneau Sébastien, Petiteau David, Zerrad Myriam, Amra Claude
Opt Express. 2014 Sep 22;22(19):23614-9. doi: 10.1364/OE.22.023614.
Transformational optics allows for unprecedented control of light with cylindrical cloaks, concentrators, rotators and superscatterers. These are made of different heterogeneous anisotropic media. Can one cloak an s-polarized field and concentrate (or rotate) a p-polarized field with the same metamaterial (or vice versa)? We show the answer is positive provided the geometric transforms underpinning these functionalities take the same values on the outer boundary of what we call a bicephalous metamaterial. In this way, one can also make a metallic cylinder appear invisible for one light polarization, and larger for the other.
变换光学借助柱形隐身衣、聚光器、旋转器和超级散射体实现了对光前所未有的控制。这些器件由不同的非均匀各向异性介质制成。能否用同一种超材料使s偏振场隐身而使p偏振场汇聚（或旋转）呢？（或者反之亦然）？我们证明，只要支撑这些功能的几何变换在我们所称的双头超材料的外边界上取值相同，答案就是肯定的。通过这种方式，还可以使金属圆柱体对一种光偏振不可见，而对另一种光偏振显得更大。
