Transmission Characteristics of Ultrasonic Longitudinal Wave Signals in Negative Refractive Index Materials
Longitudinal waves have important applications in modern scientific research and production; as a special acoustic wave, longitudinal waves have a sound transmission performance in negative refractive index materials. This paper has designed a new structure for negative refractive index materials by...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-03-01
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Series: | Crystals |
Subjects: | |
Online Access: | https://www.mdpi.com/2073-4352/10/3/227 |