SOUND LENSES. “Negative refraction in phononic crystals is possible due to multiple scattering of sound waves at the solid–air interfaces. The development of superlenses for acoustic waves would be a major breakthrough for a variety of ultra-sound techniques.”
https://lnkd.in/ehwDYhR
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022