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Directional Acoustic Luneburg Lens Waveguide
Liuxian Zhao, Timothy Horiuchi, Miao Yu
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 bas…
Realization of Flattened Structural Luneburg Lens Based on Quasi-Conformal Transformation
Liuxian Zhao, Miao Yu
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 fl…
Bi-functional Structural Luneburg Lens for Broadband Structural Wave Cloaking and Waveguide
Liuxian Zhao, Miao Yu
In this paper, we explore the concept of structural Luneburg Lens (SLL) as a design framework for performing dynamic structural tailoring to obtain a structural wave cloak and a st…
Multi-Functional Variable Thickness Structure for Broadband and Omnidirectional Focusing and Collimation
Liuxian Zhao, Changquan Lai, Miao Yu
Luneburg lens is a symmetric gradient-index lens with a refractive index that increases from the outer surface to the center in a radial manner. It has the ability to focus and col…
Ultrasound Beam Steering with Flattened Acoustic Metamaterial Luneburg Lens
Liuxian Zhao, Eitan Laredo, Olivia Ryan +5
We report ultrasound beam steering based on 2D and 3D flattened acoustic metamaterial Luneburg lenses at 40 kHz. The effective properties of the lenses are obtained by using the qu…