Deep-Subwavelength-Optimized Holey-Structured Metamaterial Lens for Nonlinear Air-Coupled Ultrasonic Imaging

Deep-Subwavelength-Optimized Holey-Structured Metamaterial Lens for Nonlinear Air-Coupled Ultrasonic Imaging

Ultrasound non-destructive testing (NDT) is a common technique used for defect detection in different materials, from aluminium to carbon-fiber-reinforced polymers (CFRPs). In most cases, a liquid coupling medium/immersion of the inspected component is required to maximize impedance matching, limiti...

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Bibliographic Details
Main Authors: Marco Boccaccio, Pasquale Rachiglia, Gian Piero Malfense Fierro, Giovanni Pio Pucillo, Michele Meo
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Sensors
Subjects:
metamaterial
holey lens
nonlinear ultrasonics
deep-subwavelength
air-coupled
non-destructive testing
Online Access:https://www.mdpi.com/1424-8220/21/4/1170

Internet

https://www.mdpi.com/1424-8220/21/4/1170

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