Yang Chengfu, Yang Jingjing, Huang Ming, Xiao Zhe, Peng Jinhui
School of Information Science and Engineering, Yunnan University, Kunming, China.
Opt Express. 2011 Jan 17;19(2):1147-57. doi: 10.1364/OE.19.001147.
Electromagnetic cloak is a device which makes an object "invisible" for electromagnetic irradiation in a certain frequency range. Material parameters for the complementary medium-assisted external cylindrical cloak with arbitrary cross section are derived based on combining the concepts of complementary media and transformation optics. It can make the object with arbitrary shape outside the cloaking domain invisible, as long as an "antiobject" is embedded in the complementary media layer. Moreover, we find that the shape, size and the position of the "antiobject" is dependent on the contour of the cloak and the coordinate transformation. The external cloaking effect has been verified by full-wave simulation.
电磁隐身衣是一种能使物体在特定频率范围内对电磁辐射“隐身”的装置。基于互补介质和变换光学的概念，推导了具有任意横截面的互补介质辅助外圆柱隐身衣的材料参数。只要在互补介质层中嵌入一个“反物体”，它就能使隐身域外任意形状的物体隐身。此外，我们发现“反物体”的形状、大小和位置取决于隐身衣的轮廓和坐标变换。全波模拟验证了外部隐身效果。
