论文标题
定向声音Luneburg镜头波导
Directional Acoustic Luneburg Lens Waveguide
论文作者
论文摘要
本文研究了声学的luneburg镜头（ALL），作为指导声波传播的设计框架。在这项研究中，我们建议基于声波聚焦和级联的全部直觉的特征来开发声学波导。通过使用具有分级填充比的晶格单位细胞来实现所有目标的折射率的连续变化。级联的所有波导设备都是根据添加剂制造技术制造的。使用该设备获得的实验结果与数值模拟和理论计算一致。
This paper investigates the acoustic Luneburg Lens (ALL) as a design framework for guiding acoustic wave propagation. In this study, we propose to develop an acoustic waveguide based on the characteristics of both acoustic wave focusing and collimation of cascaded ALLs. The continuous variation of refractive index of the ALL is achieved by using lattice unit cells with a graded filling ratio. A cascaded ALL waveguide device is fabricated based on the additive manufacturing technique. The experimental results obtained with this device are consistent with the numerical simulations and theoretical calculations.
