Topological guided acoustic wave sensor uses sound waves rather than optics, so no sensor pixels' scaling down for detecting tiny objects

https://phys.org/news/2025-12-sensor-acoustic-smallest-scales.html

"performance loss caused by miniaturizing sensors... overcome with belt buckle -sized device honing acoustic energy into nano-scale regions... in a proof-of-concept experiment, the team successfully detected a low-powered infrared laser only five micrometers wide... precision medicine identifying individual cancer cells/ specific proteins, managing/ sensing quantum scale parameters for quantum computers, condensed matter physics validating new hypotheses about how matter behaves at atomic level"