Deep subwavelength ultrasonic imaging using optimized holey structured metamaterials

Abstract This paper reports the experimental demonstration of deep subwavelength ultrasonic imaging of defects in metallic samples with a feature size of λ/25 using holey-structured metamaterial lenses. Optimal dimensions of the metamaterial’s geometric parameters are determined using numerical simu...

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Autores principales: Kiran Kumar Amireddy, Krishnan Balasubramaniam, Prabhu Rajagopal
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2017
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Acceso en línea:https://doaj.org/article/498d432f316c40d985f6374cea6577fe
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