Abstract: Compact and efficient optical antennas are fundamental components for many applications, including high-density fiber-chip coupling and optical phased arrays. Here we present the design of ...

近日，一位来自加拿大的老妇人，幸运命中lotto 649彩票500万加元大奖，约合人民币2566万余元！据了解，大奖得主并不是一位资深彩民，彩票是外出途中随手购买，没想到竟命中大奖。 得主名叫艾薇-里德（Ivy-Reid），来自加拿大的萨斯喀彻温省。前不久，艾薇带 ...

Some of the most tragic disasters are caused by major disturbances like hurricanes, severe thunderstorms, and blizzards, but there are even more treacherous hazards at sea. In fact, some of the most ...

Abstract: Electromagnetic (EM) topological insulators have been extensively explored due to the robust edge states they support. In this work, we propose a topological EM system based on a line defect ...