论文标题
地球镜片中的弹性波操纵
Elastic wave manipulation in geodesic lenses
论文作者
论文摘要
我们研究了弯曲的薄弹性波导中的波传播，其中曲率被证明等同于空间调制的折射率。我们在利用非欧几里得转型的理论框架内建立了这种关系。理论预测说明了如何设计弯曲曲线以类比与几何光学原理操纵波轨迹。 3D打印弯曲膜上的实验证实了理论预测，并将曲率视为一种可行的指导，聚焦和转向弹性波的方法。
We investigate wave propagation in curved, thin elastic waveguides, where curvature is shown to be equivalent to a spatially modulated refractive index. We establish this relationship within a theoretical framework that leverages non-Euclidean transformations. Theoretical predictions illustrate how curved profiles can be designed to manipulate wave trajectories in analogy with geometrical optics principles. Experiments on 3D printed curved membranes confirm the theoretical predictions, and suggest curvature as a viable approach for guiding, focusing and steering of elastic waves.
