# Direction-sensitive detection of a spinning object using dual-frequency vortex light

> Research article (Optics Express, 2021) · cited 39× · AI/ML

**Wikidata**: [openalex:W3130056688](https://www.wikidata.org/wiki/openalex:W3130056688)  
**Source**: https://4ort.xyz/entity/direction-sensitive-detection-of-a-spinning-object-using-dual-frequency-vortex-light