# Achromatic Needle Focusing with Superresolution Enabled by a Ring-Shaped Acoustic Metalens

> Research article (Physical Review Applied, 2023) · cited 13× · AI/ML

**Wikidata**: [openalex:W4389045594](https://www.wikidata.org/wiki/openalex:W4389045594)  
**Source**: https://4ort.xyz/entity/achromatic-needle-focusing-with-superresolution-enabled-by-a-ring-shaped-acoustic-metalens