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The Quest for Ultimate Electromagnetics using Spatial Transformations (QUEST)
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Community News - Ultrasound penetration of bone and metal
Ultrasound has been an important diagnostic tool in medicine, and also as an imaging tool in industry. However, it is not conventionally possible to image through materials like bone or metal. Now, spatial transformations have been used to design so-called complementary metamaterials that remove the absorbing and scattering effects from such obstacles, allowing ultrasound to propagate through. This is similar in some ways to cloaking the so-called "aberrating layer". The research, "Anisotropic Complementary Acoustic Metamaterial for Canceling out Aberrating Layers", is published in the open access journal Physical Review X.
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