论文标题
宽带和广角隐形性，具有PT对称2D-WEYL半学
Broadband and Wide-Angle Invisibility with PT-Symmetric 2D-Weyl Semimetal
论文作者
论文摘要
受到二维（2D）材料的宏伟特征的启发，这些特征引起了最近材料科学研究的大部分兴趣，我们研究了PT-对称2D Weyl Semimetal（WSM），以揭示宽带和广角不可见的构造在PT-对称的光学板系统中。所需的单向反射性和隐形现象是通过系统参数的最佳控制获得的。我们通过全体表达式在带有有限的折射率的常规平板材料中揭示了宽带和广角隐形性的奥秘。我们表明，其折射率相对较小的材料（通常在$η= 1 $）会产生很多宽带和广角（几乎所有入射角度）无形配置。除2D WSM以外的任何2D材料都不会观察到这一点。我们的发现表明，在这个方向上实现实验实现的具体方便。
Inspired by the magnificent features of two-dimensional (2D) materials which aroused much of the interest in recent materials science research, we study PT-symmetric 2D Weyl semimetal (WSM) to reveal the broadband and wide-angle invisible configurations in a PT-symmetric optical slab system. Desired unidirectional reflectionlessness and invisibility phenomena is obtained by the optimal control of system parameters. We unravel the mystery of broadband and wide-angle invisibility in regular slab materials with finite refractive indices by means of the plenary expressions. We show that materials whose refractive indices relatively small (usually around $η=1$) give rise to quite a lot broadband and wide-angle (almost all incidence angles) invisible configurations. This is not observed with any 2D material other than 2D WSMs. Our findings suggest a concrete expedience to experimental realizations in this direction.
