LIRAS speeds up non-destructive development of acoustic lenses, and impact-resistant films

https://phys.org/news/2023-11-technique-acoustic-lenses-impact-resistant-futuristic.html

"2 lasers: 1 zaps polymer, ceramic, or metal metamaterial and other measures vibration response enabling calculating properties including size, defects, stiffness in response to impact, and how fast ultrasound travels through them... on single chip printed hundreds of microscopic towers, each with a specific height and architecture, then tested and measured response... sound focusing ultrasound waves and lenses, boosting ultrasound probe sensitivity, impact-resistant bike helmets, lightweight bulletproof films"

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