论文标题
基于准形式转换的结构伦尼堡镜头的实现
Realization of Flattened Structural Luneburg Lens Based on Quasi-Conformal Transformation
论文作者
论文摘要
传统的结构Luneburg镜头是一种对称圆形梯度指数镜头,折射率从径向沿径向方向降低。在本文中,基于结构厚度变化的扁平结构Luneburg透镜(FSLL)是通过使用准符合形式转换(QCT)技术设计的。通过数值模拟和实验研究,证明FSLL具有出色的光束转向性能,可在所需角度操纵弯曲波传播。
Conventional structural Luneburg lens is a symmetric circular gradient-index lens with refractive indices decreasing from the centre along the radial direction. In this paper, a flattened structural Luneburg lens (FSLL) based on structural thickness variations is designed by using the quasi-conformal transformation (QCT) technique. Through numerical simulations and experimental studies, the FSLL is demonstrated to have excellent beam steering performance for the manipulation of flexural wave propagation at desired angles.