圆弧形超表面对透射声波的可调控制与功能转换1)
陈阿丽, 王新萌, 汪越胜

TUNABLE CONTROL AND FUNCTIONAL SWITCH OF TRANSMITTED ACOUSTIC WAVES BY AN ARCH-SHAPED METASURFACE1)
Chen Ali, Wang Xinmeng, Wang Yuesheng
图9 定向折射(a)、波束分离(b)和波束聚焦(c)原理示意图
Fig. 9 Schematic diagram of the directional refraction (a), beam splitting (b) and beam focusing (c)