Acoustic waves have been widely applied in communications, medical treatment, military, and other aspects. In this Letter, we explore acoustic imaging properties of three-dimensional Maxwell's fish-eye lens (3D-MFEL) with elevated refractive index profile, the analytical and numerical results show that a 3D-MFEL based on solid immersion mechanism can achieve super-resolution imaging without chromatic aberration. In addition, introducing vortex waves into the 3D-MFEL, we further explore the super-resolution imaging properties in reconstructing vortex waves. The valid combination of 3D-MFEL and solid immersion mechanism provides a meaningful way for super-resolution imaging, which also paves a way forward for future designing and manufacturing in acoustic super-imaging systems.
Acoustic super-resolution imaging based on solid immersion 3D Maxwell's fish-eye lens
Chuanjie Hu, Shuwen Xue, Yuhang Yin, Zhanlei Hao, Yangyang Zhou, Huanyang Chen; Acoustic super-resolution imaging based on solid immersion 3D Maxwell's fish-eye lens. Appl. Phys. Lett. 9 May 2022; 120 (19): 192202. https://doi.org/10.1063/5.0093339
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