Es'kin V A, Kudrin A V, Zaboronkova T M, Krafft C
Department of Radiophysics, University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod 603950, Russia.
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Dec;86(6 Pt 2):067601. doi: 10.1103/PhysRevE.86.067601. Epub 2012 Dec 26.
We study multiple scattering of electromagnetic waves by an array of parallel gyrotropic circular rods and show that such an array can exhibit fairly unusual scattering properties and provide, under certain conditions, a giant enhancement of the scattered field. Among the scattering patterns of such an array at its resonant frequencies, the most interesting is the distribution of the total field in the form of a perfect self-similar structure of chessboard type. The scattering characteristics of the array are found to be essentially determined by the resonant properties of its gyrotropic elements and cannot be realized for arrays of nongyrotropic rods. It is expected that the results obtained can lead to a wide variety of practical applications.
我们研究了平行各向异性圆棒阵列对电磁波的多重散射，并表明这样的阵列可以展现出相当不寻常的散射特性，并且在某些条件下能使散射场得到极大增强。在该阵列处于其共振频率时的散射模式中，最有趣的是以棋盘型完美自相似结构形式呈现的总场分布。发现该阵列的散射特性本质上由其各向异性元件的共振特性决定，对于非各向异性棒的阵列则无法实现。预计所获得的结果能带来各种各样的实际应用。
